The function c(n) below relates to the number of bushels of apples picked at a pick-your-own-orchard to the final cost for the apples. It takes as input the number of bushels of apples picked after paying an entry fee to the orchard, and it returns as output to the cost of the apples (in dollars). c(n)=15n+30 Which equation below represents the inverse function n(c), which takes the cost of the apples as input and returns the number of bushels as output? A) n(c)=c-15/30 B) n(c)=c+15/30 C) n(c)=c+30/15 D) n(c)=c-30/15