A cylindrical container contains some ice and the container is rotating with constant angular velocity ${\omega }_0$ about its own geometrical axis. Now heat is supplied to the cylinder and the ice is completely melted. Then angular velocity of the container becomes $\omega$. Then 

• A

  $\omega ={\omega }_0$

• B

  $\omega >{\omega }_0$

• C

  $\omega <{\omega }_0$

• D

  Not sufficient informations are given to find the relation between $\omega$ and ${\omega }_0$