A piece of ice floats in a glass filled with water. The ice contains a small stone, so that when the ice has all melted, the stone sinks to the bottom of the glass. What will happen to the level of the water in the glass, firstly as the ice melts, and secondly as the stone is released from the ice and sinks to the bottom?
The water in the glass will
A. remain the same then rise
B. rise and fall
C. fall then remain the same
D. remain the same then fall