X and Y are oxides of two different elements. When X reacts with water, aqueous solution Z is formed. Universal indicator paper changes to blue in Z. An aqueous solution of Y reacts with sodium carbonate and carbon dioxide gas is released. Which statement is correct?
- AX and Y are both the oxides of metals.
- BX and Y are both the oxides of non-metals.
- CX is the oxide of a metal and Y is the oxide of a non-metal.
- DX is the oxide of a non-metal and Y is the oxide of a metal.