Evaluate

$I={\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}{x}^{2}sin(\frac{x}{2})dx$

$A.-2x^{2}cos(\frac{x}{2})+8xsin(\frac{x}{2})+16cos(\frac{x}{2})+C$

$B.$ None $of$ the given options

$C.x^{2}cos(\frac{x}{2})+8xsin(\frac{x}{2})-4cos(\frac{x}{2})+C$

$D.-x^{2}cos(\frac{x}{2})+8xsin(\frac{x}{2})+16xcos(\frac{x}{2})+C$

$E.cos(\frac{x}{2})-8xsin(\frac{x}{2})+xcos(\frac{x}{2})+C$