_ Sulphur content in lighter and heavier petroleum products is generally determined respectively by$?

Bomb method and quartz tube method

Quartz tube method and lamp method

_ Sulphur content in lighter and heavier petroleum products is general

1.	_ Sulphur content in lighter and heavier petroleum products is generally determined respectively by$?
A.	Lamp method and bomb method
B.	Bomb method and lamp method
C.	Bomb method and quartz tube method
D.	Quartz tube method and lamp method
Answer» C. Bomb method and quartz tube method