The most probable and most likely answer to this problem would be C. revealed much about their behavior.
Out of the four options presented in this problem, C. would only need a complete subject to make it a correct sentence. Options A. by closely watching and gathering data and B. to terrifying effect would probably need other more words and/or phrases to make them more complete. D. insect studies, on the other hand, can also be considered as a correct option IF insect become the subject.
<span>Since adjectives tell us how much or how many of something you're talking about, "many" which comes before the noun "books" is the adjective. On the other hand, adverbs answer the question: How, When, Where, To what extent, or magnitude, so the word "there" answers the "where" question. It modifies the adjectives and verb.</span>
The answer would be 2. By.
A.) is the answer....i love this play
