Why is deuterium oxide called “heavy water”?(1 point)

Responses

It has extra hydrogen atoms.
It has extra hydrogen atoms.

It has extra oxygen atoms.
It has extra oxygen atoms.

Its oxygen atoms are heavier than others.
Its oxygen atoms are heavier than others.

Its hydrogen atoms are heavier than others.
Its hydrogen atoms are heavier than others.

Its hydrogen atoms are heavier than others.

The correct answer is:

Its hydrogen atoms are heavier than others.