When element X is treated with cold, dilute, aqueous sodium hydroxide, two distinct chlorine-containing products, Y and Z, are produced. What are the oxidation states of chlorine in Y and Z?
- AY: $0$, Z: $+1$
- BY: $0$, Z: $+5$
- CY: $-1$, Z: $+1$
- DY: $-1$, Z: $+5$