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.
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The main reason why Congress worked to keep a balance between the number of slaveholding states and free states is because they wanted to avoid war breaking out between the North and the South. They tried to do this through a series of compromises that ultimately failed.
The principle that is shared amongst the the teachings of Islam, Judaism, and Christianity is that A. the soul will be judged upon death.
When a person dies, he or she will be judged based on what they did when they were alive and how they behaved. This is something that all of these religions believe in.
He believed that by allowing the different branches to monitor each other, they could prevent a tyrannical government from being born.
