The flow chart illustrates the way poly(ethene) can be produced from petroleum. What processes are shown in stages 1, 2 and 3?
- A$\text{cracking; polymerisation; fractional distillation}$
- B$\text{cracking; fractional distillation; polymerisation}$
- C$\text{fractional distillation; cracking; polymerisation}$
- D$\text{fractional distillation; polymerisation; cracking}$