You've been tasked with marketing a new line of plumbing services, but you have a set budget that you cannot exceed. Why is Google Ads a viable option?

Option (b) is correct.

Explanation:

Opportunity cost refers to the cost that is associated with the choice of a particular thing or object. It is the benefit that could be obtained from the next best alternative.

Here, the opportunity cost of attending each class session is the highest benefit from the opportunity that is sacrificed.

Therefore, the opportunity cost is $8 an hour from flipping hamburgers.