The accurate statement is in a water molecule the oxygen atom has a complete outer energy level but the hydrogen atoms do not. Option 2
In a water molecule (H2O), the oxygen atom shares electrons from its outer energy level with hydrogen atoms to form covalent bonds.
Oxygen shares two electrons to complete its outer energy level (having eight electrons, achieving an octet configuration), while each hydrogen atom shares one electron.
As a result, while the oxygen atom attains stability, the hydrogen atoms do not achieve a complete outer energy level in a water molecule.