The text is so small, i can’t see it
My best bet would be either A or B if I had to choose one I'd say B, I hope I'm right
The correct answer for this question is this one: "2. appointed his own archbishops"
Pope gregory VII do to change the balance of power in the medieval period is that he appointed his own archbishops. In this way, he have to decide carefully.
Hope this helps answer your question and have a nice day ahead.
