C is making no sense to me. It is a giant assumption to think that their beak sizes are in contrast to their survival rates. I think that is a huge jump; I read C and got rid of it instantly.

love the fox news comment

well he explained it; noted- finish the video before commenting

I don't understand why it would not be B. Clearly, she is worried about the investment which would trigger one of the conditions. Right?

lmao. mastery → understanding concepts.