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Coking is

[A].	Formation of lumps or masses of coke in boiler furnaces at high temperatures	[B].	Heating of coal in absence of air driving carbon and leaving behind the residue of carbon
[C].	Burning of coal in a furnace	[D].	Producing lumps of coal from fine powders with the help of a binder
[E].	None of the above

Answer: Option B