If A⃗=2î-3ĵ+6k̂, find the unit vector along A.

Options

• Option A

  (2î-3ĵ+6k̂)/7

• Option B

  (2î+3ĵ+6k̂)/7

• Option C

  (2î-3ĵ+6k̂)/49

• Option D

  (3î-2ĵ+6k̂)/7