If f(ac) = 24- x, finding f (a) from first principle gives: Select one: O a. f'(x) - limn->o(2ha + h2 - 1) O b. f' (ac) = limn-to(2x + h2 - h) O c. f'(x) = limn +0(2hx + h2 - h) O d. f'(x) = limn-+0(2x +h -1)