It really depends on the situation, the kind of relationship, and the person. are you happy in your relationship? or do you feel like being with this person is exhausting you? if someone came up to you and gave you a chance to leave, would you feel relief to be leaving the person? so yeah, it just depends on how much you want to be with them
Answer: For part A: It is A, to create a divide between allies. And for Part B: I am going to go with C because it is about him giving something to other people so they won't favor the rich people. This answer pretty much restates my answer for Part A.
I can't think of four things but I was always taught to always cite everything. Even if you think something is an original idea or phrase, look it up and make sure and if someone else has said that just put it in your work cited because that could be considered plagiarism. Also always cite direct quotes