Respuesta :
B, D, and E all support this claim.
B, because Rainsford is incredulous at the concept of Zaroff hunting humans; he believes it is a grotesque joke at his expense. D, because he calls the hunting of humans outright cold-blooded killing, showing his contempt for the subject. This leads into the reasoning for E; E shows that he is against hunting humans because he directly states that the hunting of humans is cold-blooded murder, and he does not condone it in the slightest. This is accentuated by his stiff tone.
B - "I can't believe you are serious, General Zaroff. This is a grisly joke."
D - "Hunting? General Zaroff, what you speak of is murder."
E - "Did not make me condone cold-blooded murder," finished Rainsford stiffly.