The City of Boston Puts on a Large Fireworks Display

The city of Boston puts on a large fireworks display on the Charles River each Independence Day.The city does not charge admission to the event,and the promenade along the river is large enough to accommodate all of the spectators who arrive for the show.Boston's fireworks display is a ____________________.

A) social good
B) club good
C) common good
D) public good
E) private good