I wish I could help you but sorry
A, B, and D begin statements that can stand by themselves logically. C begins a statement that shows how the previous statement and itself are connected. As such, the answer is C(As a result).
In Sir Gawain and the Green Knight, the one who first accepts the Green Knight’s challenge was of course King Arthur. This was the case because he was the one who’s being mocked by the Knight. However, when Arthur gets the Knight’s axe, Sir Gawain said that he would take the challenge himself.
I've learned to get along with my brother ever since my father left the family business to he and I.