When a molecule of a saturated hydrocarbon is cracked, it produces two molecules, X and Y. Which row is correct?
- A$X = \text{H}_2$, $Y = \text{C}_n\text{H}_{2n}$
- B$X = \text{H}_2$, $Y = \text{C}_n\text{H}_{2n+2}$
- C$X = \text{H}_2\text{O}$, $Y = \text{C}_n\text{H}_{2n}$
- D$X = \text{H}_2\text{O}$, $Y = \text{C}_n\text{H}_{2n+2}$