Multiple Choice: Marginal Cost Function:

Let fix] be the totalCost[x] function on page 210 (2nd ed. page 242) of the Mathematica Companion. What is the marginal cost function of fix]? 0 A. The marginal cost function is the function g[x]-350-0.16 x^2. O B. The marginal cost function is the function gkJ-350-0.16x C. The marginal cost function does not exist since it involves a negative square root. 0 D. The marginal cost function does not exist since it involves division by 0