A college student is faced with a difficult decision of how to spend one hour tonight. She could babysit her professor's child at an hourly wage of $7, she could work at the college library at a wage of $6, or she could finish her economics homework assignment. If she chooses to complete her homework assignment, she has incurred an opportunity cost equal to:
a. $7.
b. $6.
c. $13.
d. $0.

Respuesta :

Otras preguntas