Kant proposed that the rule against lying is a ______.

A) categorical imperative
B) hypothetical imperative
C) ethical imperative
D) moral imperative

Kant believed that moral principles should be based on reason and logical consistency rather than subjective desires or consequences. The categorical imperative is a moral rule that applies to all rational beings, regardless of their personal preferences or circumstances. Kant argued that lying violates the categorical imperative because it treats others as mere means to an end, rather than respecting their innate dignity and autonomy. Thus, the rule against lying is a categorical imperative, according to Kant.