Which of the following is not a constituent of petroleum?

Petroleum is a naturally occurring complex mixture of hydrocarbons. When subjected to fractional distillation, it yields various useful fractions, including petrol (gasoline), paraffin wax, lubricating oil, diesel, and liquefied petroleum gas (LPG).
Conversely, coke is a solid carbonaceous residue obtained from the destructive distillation of coal (heating coal in the complete absence of air), meaning it is not a constituent derived from petroleum refining.