Im guessing its B, Because it just makes more sense! I went in there and read it aloud using both words (A and B) B made more sense. With an object being measured, such as a lemon, to make a quart of lemon juice, Id say you'd use the word number. Amount is not a word used for an object or measurement.
C) summarizing explains all of the main ideas in a source while paraphrasing focuses on just a few sentences
It is the third one
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