Solve the Differential Equation $$\frac { d y } { d x } = 3 \cos x \sec y$$

Multiple Choice

Solve the differential equation.
- $$\frac { d y } { d x } = 3 \cos x \sec y$$

A) $y = 3 \sin x + C$
B) $y = \sin ^ { - 1 } ( 3 \cos x + C )$
C) $y = \sin ( 3 \sin x + C )$
D) $y = \sin ^ { - 1 } ( 3 \sin x + C )$