You have a point.

If the subject is the ballet troupe's Board of Directors, then it should be replaced with they. Simply put, it has no antecedent in the sentence. It must refer to the ballet group but it is not a subject here. I concur.

What's the source of this sentence.

Hey Vineeshp,

I dont agree with your first point. "Board of Directors" are acting as a single unit, so it is singular not plural here.

I agree that "it" is no referent here. It is suppose to point to "troupe", but are missing the noun.

Read the sentence as:
The ballet troupe's Board of Directors unanimously voted to reengage the controversial choreographer for another season, because it reckoned the avant-garde staging of Swan Lake as not only its greatest but also its most lucrative triumph of the preceding year.

Best!!!

singh181 wrote:Hey Vineeshp,

I dont agree with your first point. "Board of Directors" are acting as a single unit, so it is singular not plural here.

I agree that "it" is no referent here. It is suppose to point to "troupe", but are missing the noun.

Agree with point 1 that the board is a single unit and hence must be referred to by "it" and not "them". Other examples: A class of students, an army of soldiers, a pack of wolves etc. is all singular.

Dont agree with point 2. "it" and "its" both refer to the "Board of Directors". It is supposed to point to the board of directors and not troupe i.e. the troupe did not reckon and vote to reengage the choreographer but the board of directors of the troupe did so.

hope that helps.

In American English, groups like "board" and "team" are mostly singular nouns even though they are made up of people. In British English they are often plural. The GMAT follows the conventions of American English.