9. In Hamlet’s soliloquy, when he say, “To sleep, perchance to dream：— ay, there’s the rub.” What is he primarily thinking about?

A
The bad dreams that have recently been troubling him.

B
 The fact that if dying is like going to sleep, then perhaps after death we have bad dreams.

C
 The sinful behavior of Gertrude, whose guilty dreams he would like to know.

D
He desires to sleep so that he will not have to take vengeful action.