What is the correct dipole moment of `NH_(3) and NF_(3)` respectively ?

Options

A. N-F bond is more polar than N-H bond
B. `NH_(3)` is pyramidal while `NF_(3)` is planar
C. In `NH_(3)` orbital dipole due to lone pair is in the same direction as the resultant dipole moment of N-H bond while in `NF_(3)` orbital dipole due to lone pair is opposite direction of the resultant of the resultant dipole moment of N-F bond
D. None of these

Answer

C