A cup of water is filled to the brim, with an ice cube in it. The top of the ice cube sticks out of the surface. As the ice melts, you observe that   A) the cup overflows.   B) the cup might overflow but it depends on the actual mass of the ice cube.   C) the water level remains the same.   D) the water level actually goes down.   E) Not enough information to answer this question

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