$$\text { Find the derivative of } y \text { with respect to } x , t , \text { or } \theta \text {, as appropriate. }$$

Multiple Choice

$$\text { Find the derivative of } y \text { with respect to } x , t , \text { or } \theta \text {, as appropriate. }$$
- $$y = \sin e ^ { - \theta ^ { 7 } }$$

A) $\cos e ^ { - \theta ^ { 7 } }$
B) $\cos \left( - 7 \theta ^ { 6 } \mathrm { e } ^ { - \theta ^ { 7 } } \right)$
C) $7 \theta ^ { 6 } \cos \mathrm { e } ^ { - \theta ^ { 7 } }$
D) $\left( - 7 \theta ^ { 6 } \mathrm { e } ^ { - \theta ^ { 7 } } \right) \cos \mathrm { e } ^ { - \theta ^ { 7 } }$