Ice at __________ is added to 50 g of water at __________. When the temperature of the mixture reaches __________, it is found that __________ of ice is still unmelted. The amount of ice added to the water was close to:
a) 0°C, 50g, 0°C, 25g
b) 0°C, 0g, 100°C, 50g
c) 100°C, 50g, 0°C, 25g
d) 0°C, 50g, 100°C, 25g
