I think B shows the best sentence fluency because all the others are really choppy sentences. Ther is constantly an abrupt stop in the other sentences.
I don’t see anything to answer your question
I believe it would be Evaluation, since we are evaluating the differences of two diets and their benefits.
“They both believed that there was too much focus on structure, so they veered away from it and used conversational language. They differed in that Pound believed in using language precisely and minimally, while Whitman tended towardlonger, wordier verse. ... Sample response: Pound wanted to simplify modern poetry.” Taken from Course Hero.com