Which is an example of a character's conflict within himself, or with his thoughts and feelings?

A.
Theseus's lifting the stone and discovering his father's sword and sandals

B.
Damon's convincing the king to let him take Pythias's place in prison

C.
Perseus's deciding that he will bring back Medusa's head or never return to court

D.
Jupiter's causing a lake to cover Baucis and Philemon's village