Q: Fact 1: Birds are endothermic tetrapod vertebrates. Fact 2: All crows are birds. Given the two facts above, what are endothermic tetrapod vertebrates?

Choices: (A). invertebrates (B). mammals (C). bats (D). crows (E). animals (F). worms (G). toads (H). monkeys
The answer is:
(D).