The answer is B. Personification isn't necessary for similes, repeating the sounds would make it a rhyme, and providing a poem has nothing to do with the two.
The correct answer is C. Analyze as it <em>best</em> replaces "carefully look over" in the sentence. Although the other answers are reasonable, it is the minor differences in denotations that make "Analyze" correct. It is not "Formulate" as it means to create something, rather it be an idea or physical object. "Differentiate" tends to mean more of a compare/contrast then the context clues imply here. Finally, "Calculate" generally means to solve something.
a deed notable especially for courage the brave feats of ordinary foot soldiers. b : an act or product of skill, endurance, or ingenuity Building the bridge was an engineering feat. 2 : act, deed.
The answer to this question is B. Heroes have amazing abilities that separate them from normal humans.