Which lines of Brutus's dialogue from Julius Caesar support the inference that Brutus feels guilty about having killed Caesar? Select the two correct answers.

"If we do meet again, why, we shall smile."

"But this same day must end that work the ides of March began."

"I killed not thee with half so good a will."

"Art thou some god, some angel, or some devil, that makes my blood cold?"

plez help