I Take 09 Kg of Ice and Dump It into 0

I take 0.9 kg of ice and dump it into 0.9 kg of water and,when equilibrium is reached,I have 1.8 kg of ice at 0°C.The water was originally at 0°C.The specific heat of water = 1.00 kcal/kg⋅°C,the specific heat of ice = 0.50 kcal/kg⋅°C,and the latent heat of fusion of water is 80 kcal/kg.The original temperature of the ice was:

A) one or two degrees below 0°C.
B) -80°C.
C) -160°C.
D) 160°C.
E) ​The whole experiment is impossible.