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.
Answer: the 3rd one sound good
Explanation:
I think C because exposition means a comprehensive description of an idea or theory and her theory/idea is that she needs to be around growing stuffz. Hope that helped :D