When a Park Is Funded by Visitors, but Not by Taxpayers

When a park is funded by visitors, but not by taxpayers in general,

A) there will be too few parks because most people simply will not pay to use a park.
B) visitors will be better served because poor service would lead to reductions in revenues.
C) maintenance in the park will suffer because budgets will decline.
D) we cannot predict what will happen because park funding by visitors has not been tried before.