which geographic condition contributed to the defeat of napoleon's troops during the invasion of russia

answer; /// i believe that the correct answer is (d)the huang he river valley;

political parties are protected under 6th amendment.

the answer is d because for c the actors can't love acting for the other's audience their not even in the same show, it can't be b either because the question is talking about the actors not the audience, and it can't be a because   it's not specific enough