Solve : $2e^{\Large\frac{x}{y}}(dx-dy)+dx-2e^{\Large\frac{x}{y}} \large\frac{x}{y}$$dy=0$

Question

$(a)\;x+2ye^{\frac{x}{y}}=c \\ (b)\;2x+ye^{\frac{x}{y}}=c \\ (c)\;2(x+ye^{\frac{x}{y}})=c \\ (d)\;2x+3y e^{\frac{x}{y}}=c $