Differentiate the Given Function $y = \frac { 7 } { ( 6 x ) ^ { 6 } }$

Multiple Choice

Differentiate the given function. $y = \frac { 7 } { ( 6 x ) ^ { 6 } }$

A) $\frac { 252 } { ( 6 x ) ^ { 7 } }$
B) $- \frac { 42 } { ( 6 x ) ^ { 7 } }$
C) $- \frac { 252 } { ( 6 x ) ^ { 7 } }$
D) $\frac { 42 } { ( 6 x ) ^ { 7 } }$
E) $- \frac { 42 } { ( 6 x ) ^ { 5 } }$