$A$ closely wound solenoid of $2000$ turns and area of cross-section $1.5 \times 10^{-4} \, m^2$ carries a current of $2.0 \, A$. It is suspended through its centre and perpendicular to its length,allowing it to turn in a horizontal plane in a uniform magnetic field of $5 \times 10^{-2} \, T$ making an angle of $30^o$ with the axis of the solenoid. The torque on the solenoid will be:

• A
  $3 \times 10^{-3} \, Nm$
• B
  $1.5 \times 10^{-3} \, Nm$
• C
  $1.5 \times 10^{-2} \, Nm$
• D
  $3 \times 10^{-2} \, Nm$