Answer:
<u><em>Legislative:</em></u>
The Legislative branch makes the laws. It is made up of members of Congress, which is split into the Senate and the House of Representatives.
<em><u>Executive:</u></em>
The Executive branch is made up of the President, Vice President, and Cabinet. This branch carries out the laws.
<u><em>Judicial:</em></u>
The Judidical branch, made up of the Supreme Court and other Federal Courts, interprets the laws.
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
D. It imposed taxes on merchants who used gold trade routes that passed through Ghana
I'm sure about the third one,but not so sure about the rest.Best of luck!