20. Given the function f(x) = 2 -3x, if we were to find the derivative of f(x) using the definition h from first principles f'(x) = lim @th)-12, what would the first line of our equation look like? h-0 A) f'(x) = lim (2-3r th)-(2-31) h-0 h B) f'(x) = lim (2-3(rth))-(2-3x) h-+0 h C) f'(x) = lim (2-3(xth))+(2-31) h-0 h D) f'(x) = lim (2-3r+3h)-(2-31) h-0 h E) None of the above