Which of the Following Would Constitute an Objection to McMahan's

Which of the following would constitute an objection to McMahan's argument about the permissibility of torture?

A) Torture is inherently impermissible because torture is always a violation of the victim's human dignity.
B) Torture is conceivably permissible in ticking bomb scenarios because the urgency of the situation might demand it.
C) Torture is sometimes permissible in principle because it will be the comparative lesser of two evils.
D) Torture should not be legally sanctioned because it degrades the humanity of the torturer.