A student has no plans for a Friday evening. She takes out $5 from the $100 she keeps in a savings account and purchases a gift to bring to a party, where entry costs nothing. What does this involve?
- Aan opportunity cost equal to $95$
- Ban opportunity cost equal to other goods she could have bought for $5$
- Cno opportunity cost, as entrance to the party is free
- Dno opportunity cost, as she had no better way of using the time