The diagram illustrates a series of reactions. butane $\xrightarrow{X}$ ethene $\xrightarrow{Y}$ ethanol $\xrightarrow{Z}$ carbon dioxide and water Which row identifies the processes X, Y and Z?
- Acracking; fermentation; respiration
- Bcracking; hydration; combustion
- Cdistillation; fermentation; respiration
- Ddistillation; hydration; combustion