Solution of the differential equation `dy/dx+(1+cos 2y)/(1-cos 2x)=0` is a)`tan y+cot x=c` b)`tan y-cot x=c` c)`tan y.cot x=c` d)`cot y.tan x=c`

Options

A. `tan y+cot x=c`
B. `tan y-cot x=c`
C. `tan y.cot x=c`
D. `cot y.tan x=c`