Suppose You Volunteer to Help Clean Up Your Neighborhood,and the Only

Suppose you volunteer to help clean up your neighborhood,and the only payment you receive is the sense of goodwill that develops with your neighbors.Your efforts cause the GDP of the economy to

A) Remain unchanged.
B) Fall by the opportunity cost of the time you spend doing volunteer work.
C) Rise by the opportunity cost of the time spent by all of the people in the neighborhood on the volunteer project.
D) Rise by the value of increased cleanliness of the neighborhood.