Five particles of masses 2 kg each are attached to the rim of a circular disc of radius 0.1 m and negligible mass. Moment of inertia of the system about the axis passing through the centre of the disc and perpendicular to its plane is

• A

  $1 \mathrm{kg}-{\mathrm{m}}^2$

• B

  $0.1 \mathrm{kg}-{\mathrm{m}}^2$

• C

  $2 \mathrm{kg}·{\mathrm{m}}^2$

• D

  $0.2 \mathrm{kg}-{\mathrm{m}}^2$