Solve this:

Q7. Moment of inertia of a uniform quarter disc of radius R and mass M about an axis through its centre of mass and perpendicular to its plane is:


      (A) $\frac{{\mathrm{MR}}^2}{2}- \mathrm{M}{\left(\frac{4\mathrm{R}}{3\mathrm{\pi }}\right)}^2 \mathrm{z}$                                    (B) $\frac{{\mathrm{MR}}^2}{2}- \mathrm{M}{\left(\sqrt{2}\frac{4\mathrm{R}}{3\mathrm{\pi }}\right)}^2$

      (C)  $\frac{{\mathrm{MR}}^2}{2}+ \mathrm{M}{\left(\frac{4\mathrm{R}}{3\mathrm{\pi }}\right)}^2$                                       (D)  $\frac{{\mathrm{MR}}^2}{2}+ \mathrm{M}{\left(\sqrt{2}\frac{4\mathrm{R}}{3\mathrm{\pi }}\right)}^2$