Concept:The verb "comprise" means "to include" or "to consist of."
It is never correctly followed by the preposition "of."
Explanation:In the given sentence, the subject is singular and the statement is in the present tense.
A singular subject requires a singular verb.
"Comprises" is the present-tense singular form of "comprise."
It already expresses the idea of "consists of," so adding "of" is unnecessary and wrong.
Therefore, "comprises of" is not acceptable in standard English.
"Comprised" is the past-tense form and does not fit the present-tense context.
"Is comprising" is also wrong because "comprise" is not normally used in the continuous form.
Thus, the best word to fill the gap is "comprises."
Answer:D. comprises