Use Implicit Differentiation to Find Dy/dx $$x = \sec ( 4 y )$$

Multiple Choice

Use implicit differentiation to find dy/dx.
- $$x = \sec ( 4 y )$$

A) $4 \sec ( 4 y ) \tan ( 4 y )$
B) $\frac { 1 } { 4 } \sec ( 4 y ) \tan ( 4 y )$
C) $\cos ( 4 y ) \cot ( 4 y )$
D) $\frac { 1 } { 4 } \cos ( 4 y ) \cot ( 4 y )$