If Liquid Ammonia and Water Were Mixed, Between Which Two

If liquid ammonia and water were mixed, between which two atoms in these molecules would a hydrogen bond form?

A) between 1 and 3
B) between 2 and 6
C) between 3 and 2, 4 and 2, 5 and 2, 1 and 6, and 1 and 7
D) Hydrogen bond formation is not possible between these two molecules.