A company is selling product x, which has demand ntion of p=52-2x and the total cost function of TC=3x^2+2x+10. the marginal revenue and marginal cost functions are;
a) MR=52-2X and MC=6x+2
b) MR=52-4x and MC=6x+2
c) MR=52-2X and MC=6x
d) MR=52-4x and MC=6x+2