Match the functions and their derivatives:
1. $y = \cos(\tan(x))$
2. $y = \sin(x) \tan(x)$
3. $y = \tan(x)$
4. $y = \cos^3(x)$

A. $y' = - 3\cos^3(x)\tan(x)$
B. $y' = \sin(x) + \tan(x) \sec(x)$
C. $y' = -\sin(\tan(x))/\cos^2(x)$
D. $y' = 1 + \tan^2(x)$