Answer :
Option C
In [tex]NF_{3}[/tex] molecule, nitrogen has 5 valence electrons and F has 7 valence electron, 3 electrons of nitrogen are shared with 3 Fluorine atoms and 2 electrons are left on nitrogen atom as lone-pair.
The structure of [tex]NF_{3}[/tex] will be pyramidal.
Fluorine is more electronegative than nitrogen, due to this high electronegativity difference the N-F bond is polar in nature. There is net dipole moment in [tex]NF_{3}[/tex] molecule thus, it is asymmetric in nature.
The structure of [tex]NF_{3}[/tex] is in the attached file.
Therefore, it has polar bonds and it is asymmetric.
