The committee of our colony is very strict. . . . . . . . . decision is the final decision. A. Its B. their C. his D. which

The correct answer is: A. Its

The committee is a group of people, so it is a singular noun. The singular possessive form of “committee” is “its.”

The other options are incorrect because they are not in the singular possessive form.

• “Their” is the plural possessive form of “they.” The committee is a singular noun, so it cannot be plural.
• “His” is the possessive form of “he.” The committee is not a person, so it cannot be “he.”
• “Which” is a relative pronoun. It cannot be used to show possession.

Here is an example of how the sentence could be used:

The committee of our colony is very strict. Its decision is the final decision.