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Zeroth law of thermodynamics states that

[A].	Two systems are always in equilibrium	[B].	If two systems are in equilibrium the third system will also be in equilibrium
[C].	If two systems are in thermal equilibrium with a third system, then they are in equilibrium with each other	[D].	Two systems not in equilibrium with a third system are also not in equilibrium with each other
[E].	None of the above

Answer: Option C