How does a lubricant reduce friction between moving parts of a machine

1.	How does a lubricant reduce friction between moving parts of a machine?
A.	Lubricant tears the parts
B.	The lubricant forms a thin film of surface between the moving parts so that they don't rub against each other directly
C.	Lubricant makes the moving parts tight
D.	Lubricant increases the material's irregularities
Answer» C. Lubricant makes the moving parts tight

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How does a lubricant reduce friction between moving parts of a machine?

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