If a person takes an action if, and only if, the extra benefits from taking that action exceed the extra costs, then that person is:

If a person takes an action if, and only if, the extra benefits from taking that action exceed the extra costs, then that person is:

A.not rational.

B.following the Cost-Benefit Principle.

C.following the Scarcity Principle.

D.not following the Cost-Benefit Principle.

正确答案:following the Cost-Benefit Principle.