A breaker is filled with water at `4^@C`. at one time the temperature is increased by few degrees above `4^@C` and at another time it is decreased by a few degrees below `4^@C`. One shall observe that

Options

A. the level remains constant in each case
B. in first case water flows while in second case its level comes down
C. in second case water over flows while in first case its comes down
D. water overflows in both the cases

Answer

D

Explanation

Water expands on both sides of `4^(@)C`.