Please answer the questions below

Question 3 (1 point) If f (x) = x4 + 2x3 then O al f" ( x) = 4x3+ 6x2 Ob f" ( x ) = 4x4 + x2 Och f" (x) =x3+12x O d) f" ( x ) = 12x3 + x Oe) f"(x) = 12x2+12x Of) None of the above