Find the equation for the ellipse that satisfies the given conditions : Vertices $(\pm 6, 0), foci (\pm 4, 0)$

Question

$\begin {array} {1 1} (A)\;\large\frac{x^2}{36}-\large\frac{y^2}{20}=1 & \quad (B)\;\large\frac{x^2}{20}-\large\frac{y^2}{36}=1 \\ (C)\;\large\frac{x^2}{36}+\large\frac{y^2}{20}=1 & \quad (D)\;\large\frac{x^2}{20}+\large\frac{y^2}{36}=1 \end {array}$