# From a disc of radius R and mass M, a circular hole of diameter R

From a disc of radius R and mass M, a circular hole of diameter R, whose rim passes through the centre is cut. What is the moment of inertia of the remaining part of the disc about a perpendicular axis, passing through the centre?

(a) 9MR^{2}/32

(b) 15 MR^{2}/32

(c) 13 MR^{2}/32

(d) 11 MR^{2}/32