Answer: C. Organic compounds are composed mainly of carbon and hydrogen.
C because "the flow" of the sentence is correct. It is not too complex. Its not A because A "are the cost of" is to complex. Its not B because the use of "Noisily" in the sentence should be placed at the end, its a wrong use of juxtaposition.
Answer:
Explanation:
The predicate nominative (noun making up the predicate) is cries. His is a possessive pronoun.