The phrase from the poem clarifies the narrator's statement in line 30 is "measure his life in deeds”
A phrase refers to a word or group of words that functions as a single unit in the syntax of a sentence, usually consisting of a head, or central word, and elaborating words.
The phrase from from line 30 “she’d say he was a cluster of grapes” helps the narrator to clarify that the doer of the action measures his life according to his deeds.
Therefore, the correct answer is option C
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