c
Moment of inertia of the disc about the axis passing through its COM and perpendicular to the plane of disc \(I _{ CM }=\frac{1}{2} MR ^2\)

From parallel axis theorem, moment of inertia of the disc about the axis passing through its diameter and perpendicular to the plane of disc is given by \(I = I _{ CM }+ Md ^2\)

So, \(\quad I=\frac{1}{2} MR ^2+ MR ^2=\frac{3}{2} MR ^2\)