A force $\overrightarrow {F} = 3 \hat i +2 \hat j -4 \hat k$ acts at the point $(1,-1,2)$. Whta is its torque about the point $(2,-1,3)$?

Question

\[\begin {array} {1 1} (a)\;\hat k & \quad (b)\;4 \hat i - 4 \hat j +\hat k \\ (c)\;-4 \hat i + 4 \hat j -\hat k & \quad  (d)\;4 \hat i - 4 \hat j +3 \hat k \end {array}\]