Integrate : $\int \large\frac{e^x + \cos x }{e^x+ \sin x} $$dx$

Question

\[\begin {array} {1 1} (a)\;\log (e^x+\sin x)+c \\ (b)\;\log (e^x-\sin x)+c \\ (c)\;\log (\sin x-e^x )+c \\ (d)\;None \end {array}\]