The flow chart illustrates some reactions of hydrocarbons. Which row is the correct one?
- Aprocess 1: cracking; condition 2: heat with nickel catalyst
- Bprocess 1: fractional distillation; condition 2: heat with acid catalyst
- Cprocess 1: cracking; condition 2: heat with acid catalyst
- Dprocess 1: fractional distillation; condition 2: heat with nickel catalyst