Phil Owns 10 Acres of Beautiful Wooded Land

Phil owns 10 acres of beautiful wooded land.When Phil decides to move to be closer to his grandchildren,he donates the land to the state with the understanding that the land will be used as a state park.Phil wants an efficient way to prevent overcrowding at the park,so he should require

A) that no park visitors ever pay an entry fee.
B) that the park limit the number of visitors to 500 per day, without an entry fee.
C) an entry fee be charged on summer weekend days when many people tend to visit the park
D) an entry fee be charged every day of the year, regardless of the number of people who would like to visit the park.