When Choosing the Right Amount of a Public Good to Supply

When choosing the right amount of a public good to supply, the government often:

A) guesses, because people have an incentive to overstate a good's value.
B) provides too much, because people have an incentive to understate a good's value.
C) provides too little, because people have an incentive to overstate a good's value.
D) fails to provide it, because people have an incentive to understate a good's value.