Calculate the Arc Length of the Indicated Portion of the Curve

Multiple Choice

Calculate the arc length of the indicated portion of the curve r(t) .
- $$r ( t ) = ( 7 t \sin t + 7 \cos t ) \mathbf { i } + ( 7 t \cos t - 7 \sin t ) \mathbf { j } ; - 3 \leq t \leq 5$$

A) 112
B) 56
C) 119
D) 238