For which of the following situations, zeroth law of thermodynamics will not be applicable?

A

50 cc of water at $$25^\circ C$$ is mixed with 150 cc of water at $$25^\circ C$$

B

500 cc of milk at $$15^\circ C$$ is mixed with 100 cc of water at $$15^\circ C$$

C

5 kg of wet steam at $$100^\circ C$$ is mixed with 50 kg of dry and saturated Steam at $$100^\circ C$$

D

10 cc of water at $$20^\circ C$$ is mixed with 10 cc of sulphuric acid at $$20^\circ C$$