A)
p q u v w x Petroleum Coal Petroleum gas Bitumen Coal gas Coke
B)
p q u v w x Coal Petroleum Coal gas Coke Petroleum gas Bitumen
C)
p q u v w x Coal Petroleum gas Coal Charcoal Gasoline Coal tar
D)
p q u v w x Petroleum Coal Gasoline Bitumen Natural gas Coke
Correct Answer: B
Solution :
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