Rosaline wrote:How does answer choice "C" strengthen the argument? It seemed irrelevant to me when I took the test which is why I picked it. I now see show "D" is correct because if the running was inhibited, it hurts the argument about dinosaurs needing a running start. As I read the answer choice more more, does "C" help the argument because the first part mentions that the feathers provided lift? Thanks in advance for your help!
Hi Rosaline,
Let's take a look at answer choice (C). We are looking for an answer that strengthens the claim that the first flying dinosaurs were gliding from trees rather than flying from the ground. If the feathers on these dinosaurs were better for gliding than flying, that would strengthen the claim that these dinosaurs glided.
Answer choice (D) is also not correct. If there were feathers on their feet that interfered with their ability to fly, that would strengthen the claim that the dinosaurs didn't really fly, they glided.
Answer choice (A) however does not strengthen the argument, and thus is the correct answer. The fact that these dinosaurs built their nest at the base of trees doesn't really speak to flying or gliding. The dinosaurs could do either from the base of a tree.
Hope that helps!
Rachael