The correct answer is: The Committee has made significant changes in the rules which will help banks.
The word “changes” is plural, so it requires a plural verb. The word “which” is a relative pronoun, and it must be preceded by a noun or pronoun. The word “banks” is a plural noun, so it can be used as the object of the preposition “to.”
The other options are incorrect for the following reasons:
- Option A: The word “change” is singular, so it does not agree with the plural subject “Committee.”
- Option B: The word “change” is singular, so it does not agree with the plural subject “Committee.” The word “in” is a preposition, and it cannot be used with a verb.
- Option C: The word “rules” is plural, so it requires a plural verb. The word “which” is a relative pronoun, and it must be preceded by a noun or pronoun. The word “rules” is a noun, so it cannot be used as the object of the preposition “to.”
- Option D: The word “help” is a verb, and it requires a subject. The word “rules” is a noun, so it cannot be used as the subject of a sentence.
Therefore, the correct answer is: The Committee has made significant changes in the rules which will help banks.