Integrate : $\int\large\frac{\cos 2x}{\cos ^ 2 x} $$dx$

Question

\[\begin {array} {1 1} (a)\;2x+\tan x +c \\ (b)\;-2x -\tan x+c \\ (c)\;-2x + \tan x +c \\ (d)\;2x - \tan x+c \end {array}\]