Question

pregunta 1 (1 punto)
goods & services that are used in place of other goods & services are known as ____.
○ a inferior goods
○ b normal goods
○ c substitutes
○ d complements

pregunta 2 (2 puntos)
the thing that you have to give up in order to have something else is a/an ____.
○ a marginal cost
○ b want
○ c opportunity cost
○ d trade - off

Explanation:

.

• Opportunity cost: The next - best alternative given up.
• Trade - off: A choice between alternatives, but the "thing given up" is opportunity cost. The question defines the thing given up to have something else, so it's opportunity cost.

Answer:

c. opportunity cost