A bar magnetis hung by a thin cotton thread in a uniform horizontal magnetic field and is in equilibrium state. The energy required to rotate it by $$60^0$$ is W. Now the torque required to keep the magnet in this new position is

A

$$\sqrt{3}W$$

B

$$\frac{\sqrt{3}W}{2}$$

C

$$\frac{2W}{\sqrt{3}}$$

D

$$\frac{W}{\sqrt{3}}$$