$\begin {array} {1 1} (A)\;\large\frac{x^2}{25}+\large\frac{y^2}{16}=1 & \quad (B)\;\large\frac{x^2}{16}+\large\frac{y^2}{25}=1 \\ (C)\;\large\frac{x^2}{25}-\large\frac{y^2}{16}=1 & \quad (D)\;\large\frac{x^2}{16}-\large\frac{y^2}{25}=1 \end {array}$