One Way to Measure the Opportunity Cost of an Hour

Multiple Choice

One way to measure the opportunity cost of an hour of leisure is:

A) the wage rate that an individual could earn for that hour.
B) the cost of going to a restaurant every evening to eat.
C) the cost of visiting a museum just for fun.
D) the cost of the cleaning service that I hire to clean my house because I work 50 hours per week.