Answer:
b. the categorical imperative.
Explanation:
Categorical imperative: The term categorical imperative was proposed by a German philosopher named Immanuel Kant during the 18th century and who is also considered as the creator of the critical philosophy. It is referred to as a deontological moral theory that states the wrongness or the rightness of an individual's actions doesn't depend on the outcome or result of that action rather on the idea of whether it completes the duty or not. According to Kant, the categorical imperative is considered as a principle to morality.
In the question above, the given statement signifies the categorical imperative.
