Answer:
The opportunity cost of going to the beach is lost time to study for the exam
The opportunity cost of going to college is the lost earnings from getting a paying job after high school
The opportunity cost of eating breakfast is arriving late to school
The opportunity cost of going to the movies is not completing your portion of the group project
The opportunity cost of going to a party at a friend's house on a school night is the inability to wake up early the next morning
Explanation:
An opportunity cost is the lost benefit attached to choosing one option over another. The scenarios given require the consequences which occur as a result of not choosing one option of the two alternatives presented. In each of the given cases, the foregone benefit varies depending on the option selected.