The rumbling storm sounded like a freight train headed our way?

A. Personification. B. simile. C. paradox. D. Assonance

The answer is B because a simile is the comparison of people, places, or things with other people, places, or things using the terms "like" or "as". For example: That boy is as thin as a twig. This sentence compares the boy to the twig while using the term "as". All of the other choices besides B is incorrect because it doesn't correctly apply to the statement.

The answer would be b) simile.