From a circular disc of radius \( R \) and mass \( 9 \mathrm{M} \), a small disc of mass \( M \)...

From a circular disc of radius \( R \) and mass \( 9 \mathrm{M} \), a small disc of mass \( M \) and radius \( \frac{R}{3} \) is removed concentrically. The moment of inertia of the remaining disc about an axis perpendicular to the plane of the disc and passing through its centre is
[CBSE PMT (Mains) 2010]
(a) \( \frac{40}{9} M R^{2} \)
(b) \( M R^{2} \)
(c) \( 4 M R^{2} \)
(d) \( \frac{4}{9} M R^{2} \)