How are Gregor's mind and body in conflict?

A. He can no longer remember being a human, but his body is slowly
beginning to return to normal.

B. His body has grown stronger and more powerful, but his mind is
weak and he is going insane.

C. He is learning how to communicate with his family, but his body is
changing into something inhuman.

D. He can no longer communicate with others but still has the ability
to think, feel, and reason.