When Choosing the Right Amount of a Public Good to Supply,the

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

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