An office copier has an initial price of $2,600. A service contract costs $100 for the first year and increases $60 per year thereafter. It can be shown that the total cost of the copier after n years is given by C(n) =2,600 + 70n + 30n2. The average cost per year for n years is given by C(n) =- C(n) n Complete parts (A) through (D). (A) Find the rational function C. 2600 C(n) = +70+ 30n n (B) Sketch a graph of C for 2 s n s 20. Choose the correct graph below. O A. O B. O c. O D. 1500 7C AC 1500- 1500- 1500 HHHHHH 25 25