Kant Proposed the Following Argument for Duty Ethics: "Nothing Can

Kant proposed the following argument for duty ethics: "Nothing can possibly be conceived in the world, or even out of it, which can be called good, without qualification, except a good will." This argument is problematic because

A) Kant was a well-known supporter of utilitarianism.
B) the conclusion is a factual statement, not a moral one.
C) acts performed with a good will sometimes have catastrophic consequences.
D) None of the above