Zeroth law of thermodynamics states that

A

two thermodynamic systems are alwaysin thermal equilibrium with each other

B

if two systems are in thermal equilibrium, then the third system will also be in thermal equilibrium

C

two system not in thermal equilibrium with a third system will also not in thermal equilibrium with each other

D

when twosystemsare in thermal equilibrium with a third system, they are in thermal equilibrium with each other