Identify the part containing a grammatical or structural error:
The jury was divided in their opinions.

Correct option is C

Option (c) contains an error.
Explanation: Collective nouns (e.g., jury, team, committee) may take singular verb/pronoun when acting as a unit, but take plural verb/pronoun when emphasizing individual members acting separately. The phrase “divided in their opinions” shows members acting individually, so the verb should be plural: “The jury were divided in their opinions.” Alternatively, you can keep singular agreement throughout: “The jury was divided in its opinions.” The original mixes singular verb was with plural pronoun their, causing a concord (agreement) error.
Grammatical rule used:
· Subject–verb–pronoun agreement with collective nouns:
· Unified action → singular: “The team is winning; it will celebrate.”
· Separate/individual action → plural: “The team are arguing among themselves.”
Example: “The committee were unable to reach a single decision because they disagreed.”
Information booster:
· Be consistent: either plural verb + plural pronoun (were … their) for divided action, or singular verb + singular pronoun (was … its) for unified action.
· In BrE, plural with collective nouns is common for divided action; in AmE, writers often prefer singular, but must keep pronoun agreement consistent.