When Heating 2 Kg of Ice from -40°C,2 Kg of Water

Multiple Choice

When heating 2 kg of ice from -40°C,2 kg of water from 20°C to 50°C,and 2 kg of steam from 100°C to 125°C,which requires the most energy?

A) the ice
B) the water
C) The steam,it's obvious since it is the hottest.
D) All three take the same amount.