In the Reading, Socrates Says, "What Can He Mean When

In the reading, Socrates says, "What can he mean when he says that I am the wisest of men? And yet he is a god and cannot lie; that would be against his nature. After a long consideration, I at last thought of a method of trying the question. I reflected that if I could only find a man wiser than myself, then I might go to the god with a ___________ in my hand."

A) confirmation
B) refutation
C) certificate
D) absolution