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Find the torque of a force vec F = -3hat...

Find the torque of a force `vec F = -3hat i + hat j+ 5hat k` acting at the point `vec r = 7hat i + 3hat j+ hat k`

A

`14 hat i - 38 hat j + 16 hat k`

B

`4 hat i + 4 hat j + 6 hat k`

C

`-21 hat i + 4 hat j + 4 hat k`

D

`-14 hat i + 34 hat j - 16 hat k`

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