Provide an Appropriate Response $\frac { d w } { d t }$

Multiple Choice

Provide an appropriate response.
-Find $\frac { d w } { d t }$ at $t = 0$ for the function $w = \sin ( x ) \cos ( y ) \ln ( z )$ where $x = - 9 t ^ { 2 } + 6 t + \frac { \pi } { 2 } , y = t , z = e ^ { - 8 t }$ .

A) 1
B) $- 16$
C) $- 8 e ^ { - 8 }$
D) $- 8$