What is the torque of the force $\mathbf{F}=(2 \mathbf{i}-3 \hat{\mathbf{i}}+4 \hat{\mathbf{k}}) \mathrm{N}$
acting at the point $\mathbf{r}=(3 \hat{\mathbf{i}}+2 \hat{\mathbf{j}}+3 \hat{\mathbf{k}}) \mathrm{m}$ about the
origin?
(a) $-17 \hat{\mathrm{i}}+6 \hat{\mathrm{j}}+13 \hat{\mathrm{k}}$
(b) $-6 \hat{i}+6 \hat{j}-12 \hat{k}$
(c) $17 \hat{\mathbf{i}}-6 \hat{\mathbf{j}}-13 \hat{\mathbf{k}}$
(d) $6 \hat{i}-6 \hat{j}+12 \hat{k}$