The solution of the differential equation $\large\frac{dy}{dx}$$-y \tan x=e^x \sec x$ is

Question

\[\begin {array} {1 1} (1)\;y=e^x \cos x+C & \quad (2)\;y \cos x=e^x +C \\ (3)\;y=e^x \sin x+C & \quad (4)\;y \sin x=e^x +C \end {array}\]