Moment of inertia of a rectangular plate about an axis passing through its centre and perpendicular to its plane

Question

\[\begin {array} {1 1} (a)\;\frac{Ml^2}{b}+\frac{Mb^2}{b} & \quad (b)\;\frac{M}{12} (l^2+b^2) \\ (c)\;\frac{M}{3} (l^2+b^2) & \quad  (d)\;\frac{M}{4}(l^2+b^2) \end {array}\]