24. (D)
Question type: Application
The flaws in the original argument are that two consequences mentioned aren’t necessarily the only two consequences of the asteroid, and the fact that we cannot prove that fire and /or climate change caused the triceratops to go extinct doesn’t mean that they didn’t in fact do so. Therefore, the conclusion is based on an incomplete understanding. Perhaps some other consequence of the asteroid caused triceratops to go extinct, or perhaps it was climate change or fire and we just can’t prove it yet. Answer choice (D) contains the same type of flawed, incomplete understanding, and is therefore correct.
(A) is flawed, but not in the same way as the original argument.
(B) is flawed, but not in the same way as the original argument.
(C) is flawed, but not in the same way as the original argument.
(D) is flawed, but not in the same way as the original argument.