The US innovation of Afghanistan was a response to the 9/11/01 attacks on the US. So A.
I think the correct answer for that would be to B.Declare War
All along<span> the the </span>west<span> and </span>south<span> coasts of </span>South America<span>, the </span>Andes<span> are a barrier to movement in interior. As a result, more </span>settlement<span> in </span>South America<span> has occurred </span>along<span> the eastern and northern coasts.</span>
