Kant Says That Some Duties Generated by the Categorical Imperative

Multiple Choice

Kant says that some duties generated by the categorical imperative are absolute-they are perfect duties.So regarding the perfect duty not to lie,Kant would insist that lying is:

A) permitted if the duty not to lie conflicts with other duties.
B) not permitted under any circumstances.
C) permitted if the only way to prevent the deaths of several innocent people is to lie.
D) not permitted under some unspecified circumstances.