A slab is subjected to two forces $$\vec{F_1}$$ and $$\vec{F_2}$$ of same magnitude $$F$$ as shown in the figure. Force $$\vec{F_2}$$ is in XY-plane while force $$\vec{F_1}$$ acts along z-axis at the point $$(2\hat{i} + 3\hat{j})$$. The moment of these forces about point O will be:

A

$$(3\hat{i} - 2\hat{j} + 3\hat{k})$$ F

B

$$(3\hat{i} - 2\hat{j} - 3\hat{k})$$ F

C

$$(3\hat{i} + 2\hat{j} - 3\hat{k})$$ F

D

$$(3\hat{i} + 2\hat{j} + 3\hat{k})$$ F