Answer:
A. the electronegative atom becomes partially negative.
D. the hydrogen atom becomes partially positive.
Step-by-step explanation:
When a very electronegative element, like oxygen, is bonded to hydrogen:
A. the electronegative atom (oxygen) becomes partially negative due to the unequal sharing of electrons in the bond.
D. the hydrogen atom becomes partially positive due to the unequal sharing of electrons in the bond.