The conflict between Henry IV and Gregory VII Concerned the question of who got to appoint local church officials. Henry believe that, asking, he has the right to a point the bishop of the German church. This was known as lag investiture.
Hope that helped
I believe the correct answer is B. focused on warlike ability.
Spartans were famous for their warriors, and if you know anything about history (or you've seen the move '300') you know what I'm talking about. Democracy, philosophy, and art were are connected with Athens far more than with Sparta.
D. You go any further north and its too cold :)
