Question

a free rider is a person who:
a. is harmed by anothers actions.
b. pays less than the full value for a product.
c. receives benefits from someone elses action but does not pay for them.
d. is subject to a negative externality.

Explanation:

A free rider refers to someone who gains the benefits of a good, service, or action without contributing to the cost of providing it. Option a describes a victim of a negative externality, not a free rider. Option b refers to getting a discounted product, which is unrelated to the free rider concept. Option d is about being affected by a negative externality, which is distinct from free riding. Only option c matches the definition of a free rider.

Answer:

c. receives benefits from someone else's action but does not pay for them.