Answer:
I think all those are correct but i could be wrong without text.
The ghost would influence Hamlet so as he reacts and kill his uncle by making him fight internally against his impulses caused by this tragedy and produced by his heart that is what he feels, and against what his use of reason says says that, eventhough his father his dead and he wants revenge, he knows that killing is a crime and he would have to deal with with the consecuences in case that he commits the crime. He would have to choose between follwing his feelings or his use of reason, and that is a real battle.
a) The speaker is focused on a group of people and their history
Answer: D
It should be contradict. The sentence "As much as he tried to contradict the evidence, it was clear he was the thief" gives more clarity and emphasis to the previous sentence of "he tried to deny that the backpack filled with stolen jewelry found beside his car was his."