Answer:
D. because Claudius is a murderer
Explanation:
Hamlet indirectly says that Claudius will go to hell when he dies. That's because Hamlet wants to kill Claudius to avenge his father's death, since Claudius killed him.
Since Claudio is a murderer, Hamlet knows that there will be no salvation for him, so if he has to look for someone in the hereafter, it will be in hell and not in heaven.