AP English Literature and Composition · Exam guide

AP English Literature Evidence and Commentary Explained: Earning the Four Points in Row B

Row B is worth four of the six points. It rewards specific evidence from the text, commentary that explains how that evidence supports your interpretation, and a line of reasoning that ties the paragraphs together. Evidence is what you quote or describe. Commentary is what you say about it. This guide shows how to do both.

Evidence and commentary

What it isExample from Frost
EvidenceA specific detail from the text: a quotation, an image, a line of dialogue, an event."The woods are lovely, dark and deep, / But I have promises to keep."
CommentaryYour explanation of how the evidence supports your claim.The word "But" turns the poem from admiration of the woods to duty, and the rhyme of "deep" with "keep" ties the temptation to the obligation.

A worked paragraph

Evidence, little commentaryIn the last stanza, Frost writes, "But I have promises to keep, / And miles to go before I sleep." This shows that the speaker has to go on.

It quotes the lines but the commentary only restates them.

Evidence with commentaryThe turn comes with a single word. After the speaker calls the woods "lovely, dark and deep", "But" pulls the poem back to "promises to keep", and the rhyme of "deep" with "keep" binds the temptation to the obligation. The speaker does not reject the woods; he sets his duty beside them. That is why the final line is repeated: the second "miles to go before I sleep" can be read as the speaker reminding himself, and it makes the closing moment feel like effort, not calm.

Each piece of evidence is explained, and the paragraph builds toward one interpretation.

A line of reasoning

A line of reasoning is a sequence in which each paragraph advances one part of your argument. You can test yours by reading the first sentence of each paragraph. Together they should read like the outline of an argument, not a list of devices.

The ladder (score from 0 to 4)

ScoreWhat the essay shows
0Only restates the thesis or the prompt.
1General evidence, with commentary that only summarizes.
2Some specific evidence and commentary, but no clear line of reasoning.
3Specific evidence supports every claim in a line of reasoning, with commentary on some of it.
4The same, with commentary that consistently explains how the evidence supports the interpretation.

Sentence frames for commentary

  • This detail suggests that... because...
  • By placing... next to..., the writer shows...
  • The shift from... to... reveals...
  • Together, these choices make the reader feel..., which supports the idea that...

Common mistakes

  • Quoting a line and moving on.
  • Retelling the plot in the middle of the essay.
  • Commentary that only repeats the quotation in other words.
  • Using "shows" or "emphasizes" with no explanation of how.
  • Evidence that is general ("the author uses imagery") rather than specific.

Frequently asked questions

How many quotations do I need in each paragraph?

One or two well-chosen details with careful commentary are stronger than many with little.

Can I paraphrase instead of quote?

Yes, if you point to a specific detail. Short quotations are often the clearest evidence.

Is plot summary ever useful?

Only a sentence or two to set up evidence. Summary alone earns little.

What separates a 3 from a 4 in Row B?

At 4, the commentary consistently explains how the evidence supports the line of reasoning, not just some of the time.

Where can I find the official scoring rules?

Exam formats change a little from year to year, so check the current course and exam description on the College Board site before test day.

Keep practicing

The AP English Literature course has five practice prompts for each of the three essay types, with a timed writing space that scores your response against the official 6-point analytic rubric. These free lessons also build the skills the free-response section tests:

See the AP English Literature and Composition course Free lessons and lesson list

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