Which of the following is the general solution of $\large\frac{d^2y}{dx^2}$$-2\large\frac{dy}{dx}$$+y=0$

Question

\[(A)\;y=(Ax+B)e^x \quad (B)\;y=(Ax+B)e^{-x}\quad(C)\;y=Ae^x+Be^{-x} \quad (D)\;y=A\cos x+B\sin x\]