Answer : A. air trapped inside the brick comes out
At 0o C the density of ice 0.96 of water. If 1 Cu.m. of water is solidified at 0oC. We can infer:
i) Density of all liquids are higher when solidified;
ii) Ice will float at 0o C in water, half submerged and half above the surface of water;
iii) when solidified water expands.