Critical Reading>Sentence Completions
Choose the word or set of words that, when inserted in the sentence, best fits the meaning of the sentence as a whole.
Scientists are studying the birth and growth of thunderstorms to discover what causes the difference between showers that enable crops to ------- and ------- storms that cause floods and erosions.
(A) flourish . . violent
(B) wither . . damaging
(C) grow . . harmless
(D) parch . . severe
(E) multiply . . essential