The Efficient Quantity of a Public Good Can't Be Produced

Multiple Choice

The efficient quantity of a public good can't be produced by private firms because

A) only the government has the necessary resources.
B) consumers have an incentive to free ride and not pay for their share of the good.
C) the price would be too high if private firms produced the goods.
D) private firms aren't large enough.
E) it is impossible to determine the efficient amount.