(A) : When water at `4^(@)C` is filled to the brim of a beaker, then it over flows when it is either cooled or heated.
( R) : Water has positive coefficient of expansion above `4^(@)C` and negative coefficient below `4^(@)C`

Options

A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true and (R) is not the correct explanation of (A)
C. (A) is true but (R) is false
D. Both (A) and (R) are false

Answer

A