The angular velocity of a body changes from $6 \mathrm{rad} \mathrm{s}^{-1}$ to $21 \mathrm{rad} \mathrm{s}^{-1}$ in a time of 1.5 s. If the moment of inertia of the body is $100 \mathrm{~g} \mathrm{~m}^2$, then the rate of change of angular momentum of the body is

• A

  0.12 N m
• B

  0.6 N m
• Correct answer
  C

  1 N m
• D

  0.8 N m

Hence, the correct answer is option: 'C'.