A magnet of magnetic moment \[50\,\hat{i}\,A\text{-}{{m}^{2}}\] is placed along the x-axis in a magnetic field \[\overrightarrow{B}=(0.5\,\hat{i}+3.0\hat{j})\,T.\] The torque acting on the magnet is [MP PMT 2000]

• A.            175 \[\hat{k}\,\,N\text{-}m\]                                           
• B.            150 \[\hat{k}\,\,N\text{-}m\]
• C.            75 \[\hat{k}\,\,N\text{-}m\] 
• D.            \[25\sqrt{37}\,\hat{k}\,\,N\text{-}m\]