Namsa has $100 and she is considering two options: Option A is to buy a new video game for $60, and Option B is to save the money in a bank account with a 5% interest rate. What economic concept helps Namsa understand the value of the foregone interest income if she chooses Option A?
a. Sunk Cost
b. Marginal cost
c. Opportunity Cost
d. Explicit Cost
a. Sunk Cost
b. Marginal cost
c. Opportunity Cost
d. Explicit Cost