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

Multiple Choice

$$\text { Find the derivative of } y \text { with respect to } x , t , \text { or } \theta \text {, as appropriate. }$$
- $$y = \ln \frac { 1 + \sqrt { x } } { x ^ { 3 } }$$

A) $\frac { - 6 - 5 \sqrt { x } } { 2 ( 1 + \sqrt { x } ) }$
B) $\frac { 6 - 5 \sqrt { x } } { 2 x ( 1 + \sqrt { x } ) }$
C) $\frac { - 6 - 5 \sqrt { x } } { 2 x ( 1 + \sqrt { x } ) }$
D) $\frac { - 6 - 5 \sqrt { x } } { 2 x }$