(A) : Anamalous expansion of water is favorable for acquatic animals
( R) : The lowest possible temperature at bottom of water lake is `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