One method for studying opportunity cost is to think in terms of
risk and benefit.
pros and cons.
cause and effect.
trial and error.

The correct answer is risk and benefit. One method for studying opportunity cost is to think in terms of "risk and benefit." When talking about opportunity cost, you need to balance your choices between two items. You need to see to it that the risk and the benefits of getting that opportunity.

The president donald trump

The answer is dialectical inquiry