During the chlor-alkali process, which of the following statements is correct regarding the products formed at different electrodes?

1. AHydrogen gas is released at the cathode and chlorine gas at the anode.
2. BChlorine gas is released at the cathode and hydrogen gas at the anode.
3. CSodium hydroxide is formed at the anode and chlorine gas at the cathode.
4. DSodium hydroxide and hydrogen gas both form at the anode.