Answer: D) salt, NaCl
Explanation: Bonded Ions are held together by the electrostatic force of attarction between the oppositely charged ions.
Thus Sodium Chloride is the only otion out of the given compounds that forms a network of bonded ions.
Sugar doesnot form this work becuase it gets breaks down ino CO2 and H2O which are uncharged molecules.
Methane is a molecule with covalent bonding thus cannot form ion bonded network.