If 25 Kg of Ice at 0 $\degree$ C Is Combined with 4 Kg of Steam at 100

If 25 kg of ice at 0 $\degree$ C is combined with 4 kg of steam at 100 $\degree$ C,what will be the final equilibrium temperature (in $\degree$ C) of the system?

A) 40
B) 20
C) 60
D) 100
E) 8