Concept:Unequal sharing of electrons between two atoms creates bond polarity.
Explanation:When hydrogen bonds with a highly electronegative atom, the electronegative atom pulls the shared electron pair closer to itself.
This gives the electronegative atom a partial negative charge and hydrogen a partial positive charge.
Thus, the bond formed is a polar covalent bond and exhibits polarity.
It is not an electrovalent bond because electrons are shared, not completely transferred.
The term dipole describes the resulting charge separation, but the direct result of such bond formation is polarity.
Answer:A. polarity