24. The maximum acceleration attained on the interval $0 \leq t \leq 3$ by the particle whose velocity is given by $v ( t ) = t ^ { 3 } - 3 t ^ { 2 } + 12 t + 4$ is (A) 9 (B) 12 (C) 14 (D) 21 (E) 40
,$$
24. The maximum acceleration attained on the interval $0 \leq t \leq 3$ by the particle whose velocity is given by $v ( t ) = t ^ { 3 } - 3 t ^ { 2 } + 12 t + 4$ is\\
(A) 9\\
(B) 12\\
(C) 14\\
(D) 21\\
(E) 40\\