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The unit vector perpendicular to the vec...

The unit vector perpendicular to the vectors `hat(i) -hat(j) + hat(k), 2hat(i) + 3hat(j) -hat(k)` is

A

`(-2hat(i) + 5hat(j) + 6hat(k))/(sqrt38)`

B

`(-2hat(i) + 3hat(j) + 5hat(k))/(sqrt30)`

C

`(-2hat(i) + 4hat(j) + 5hat(k))/(sqrt38)`

D

`(-2hat(i) + 3hat(j) + 5hat(k))/(sqrt38)`

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