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

Multiple Choice

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

A) $\frac { 1 - 7 \ln x } { x ^ { 14 } }$
B) $\frac { 1 - 7 \ln x } { x ^ { 8 } }$
C) $\frac { 1 + 7 \ln x } { x ^ { 14 } }$
D) $\frac { 7 \ln x - 1 } { x ^ { 8 } }$