The moment of inertia of a circular disc of radius $2 \,m$ and mass $1 \,kg$ about an axis passing through the centre of mass but perpendicular to the plane of the disc is $2 \,kg \,m^{2}$. Its moment of inertia about an axis parallel to this axis but passing through the edge of the disc is (see the given figure).

• A
  $8 \,kg \,m^{2}$
• B
  $4 \,kg \,m^{2}$
• C
  $10 \,kg \,m^{2}$
• D
  $6 \,kg \,m^{2}$