A local golfer contributed $100,000 to the city stipulating that the money be invested and that the earnings thereon be used for maintenance of the city golf course. The $100,000 would most appropriately be recorded in a(an)

A local golfer contributed $100,000 to the city stipulating that the money be invested and that the earnings thereon be used for maintenance of the city golf course. The $100,000 would most appropriately be recorded in a(an) 

Ans. A permanent fund.