Mark $(\sqrt{)}$ against the correct answer in each of the following:
$\int \frac{\cos 2 x}{\cos ^{2} x \sin ^{2} x} d x=?$
A. $-\cot x-\tan x+C$
B. $-\cot x+\tan x+C$
C. $\cot x-\tan x+C$
D. $\cot x+\tan x+C$
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