$In$ Problems $9-18,$ use the Antiderivatives and Defi$-$ nite Integrals Theorem $to$ evaluate each integral. $15$

$(a){\displaystyle \underset{-3}{\overset{3}{}}}3x^{2}dx$

$(b){\displaystyle \underset{-3}{\overset{0}{}}}3x^{2}dx$

$(c){\displaystyle \underset{0}{\overset{3}{}}}3x^{2}dx$