Subject :IMO Class : Class 8

The cost of a chocolate is Rs (x + 4) and Rohit bought (x + 4) chocolates. Find the total amount paid by him in terms of x.

Ax^{2} + 8x + 16

B8x^{2} + 16x + 12

C6x^{2} + 2x + 14

D8x^{2} + x + 16