Why does Carton appear to be disinterested during Darnay's first trial?

A.

Carton is trying to fool the people in the court so he and Stryver will win the case.

B.

Carton wants to avoid Darnay because he is startled at how much they look alike.

C.

Carton cannot summon any energy and feels no sense of purpose in his life.

D.

Carton is hoping Darnay will be convicted so Carton can have Lucie.