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What is the torque of force vec F = (2ha...

What is the torque of force `vec F = (2hati -2hatj - 4hatk)` N acting at a point `vec r = (3hati + 2hatj) m` about the origin?

A

`(hati + 18hatj - 13hatk) N m`

B

`(hati + 18hatj + 13hatk) N m`

C

`(-hati - 18hatj - 13 hatk) N m`

D

`(hati-18hatj - 13hatk) N m`

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