In the following questions, a sentence is divided into

Solution

The sentence states that the committee has concluded something, and the error lies in the clause beginning with “that the proposal require further deliberation.” In this clause, the subject is “the proposal,” which is singular. However, the verb used is “require,” which is plural. According to the rules of subject–verb agreement, a singular subject must take a singular verb. The long descriptive phrase before this clause distracts the reader, but it does not change the grammatical relationship between the subject and the verb. The correct verb form should be “requires,” which makes option (c) the correct answer.