A large hydrocarbon is cracked. The only two products are a smaller hydrocarbon, X, and a gas. Which row names hydrocarbon X and the gas?
- Ahydrocarbon X: saturated; gas: carbon dioxide
- Bhydrocarbon X: saturated; gas: hydrogen
- Chydrocarbon X: unsaturated; gas: carbon dioxide
- Dhydrocarbon X: unsaturated; gas: hydrogen