I believe the answer is c
These lines are spoken by a captain who has been wounded in the war. He is relaying the information about Macbeth's brave fight against the enemy to King Duncan. He talks about how brave and valiant Macbeth was, so the audience can infer that he is a fierce warrior who will stop at nothing to ensure his win in a battle.
myself is the reflexive pronoun for I
so myself is your answer
hope this helps
Use your intro as a guide and restate your original idea. Leave your readers with something to think about