If the position vector of a point P with respect to origin O is î + 3ĵ - 2k̂ and that of a point Q is 3î + ĵ - 2k̂, then what is the position vector of the bisector of the angle POQ?
1
î - ĵ - k̂
2
î + ĵ - k̂
3
î + ĵ + k̂
4
None of the above