Nitrogen (N) Is Much More Electronegative Than Hydrogen (H)

Nitrogen (N) is much more electronegative than hydrogen (H) . Which of the following statements about the atoms in ammonia (NH3) is correct?

A) Each hydrogen atom has a partial positive charge; the nitrogen atom has a partial negative charge.
B) The nitrogen atom has a full positive charge; each hydrogen atom has a full positive charge.
C) Each hydrogen atom has a partial negative charge; the nitrogen atom has a full positive charge.
D) The nitrogen atom has a partial positive charge; each hydrogen atom has a partial negative charge.
E) There are nonpolar covalent bonds between the hydrogen atoms and polar covalent bonds between each hydrogen atom and the nitrogen atom.