Concept:Collective nouns have specific correct forms for different animals. One of the given options uses a wrong collective noun.Explanation:A host of angels is correct. A congress of baboons is correct. A shoal of fish is correct. A group of ducks is called a flock, a raft, or a team—not a clutch. The word clutch is used for eggs or chickens, not for ducks. Therefore, option C contains the error.Answer:Option C: Clutch of ducks