The Free-Rider Problem Exists Because

Multiple Choice

The free-rider problem exists because

A) private goods or services cause some people to want to take them for free.
B) some goods or services are excludable and cause envy for those who don't have them.
C) some goods or services that are rival and leave some people without them.
D) people cannot be excluded from consuming public goods even if they don't pay for them.
E) people must all consume the same public good and so everyone wants to pay for it.