D
Censor: All anarchist novels have two objectionable characteristics: a subversive outlook and the depiction of wholesale violence. Ttherefore, it is permissible to ban any anarchist novel that would do more harm than good to society. Which one of the following principles, if valid, most helps to justify the censor's reasoning?
A: If a novel depicts wholesale violence, then it is permissible to ban it if doing so would do more good than harm to society.
B: It is permissible to ban a novel that depicts wholesale violence only if that novel has at least one other objectionable characteristic.
C: If a novel has a subversive outlook but does not depict wholesale violence, it is impermissible to ban it.
D: It is permissible to ban a novel that would cause society more harm than good if the novel has two or more objectionable characteristics.