The Free-Rider Problem Occurs Because

The free-rider problem occurs because:

A) it is easy to exclude others from consuming the good.
B) consumption is rivalrous,so that the consumption of a product by one individual diminishes that available for others.
C) exclusion is costly or impossible,so that a consumer or producer can use the good without having to pay for it.
D) costs are imposed on others not directly involved in the transaction.
E) individuals are not required to pay for those goods which do not yield any utility to them.