Assetion : Secreting hypotonic urine is effective in reducing urinary loss of water .
Reason : Hypotonic urine is more concentrated and higher in osmotic pressure than the blood .
A. if both assertion and reason are true and the reason is correct explanation of the assertion
B. if both assertion and reason are true but reason is not a correct explantion of the assertion
C. if the assertion is true but reason is false
D. if both the assertion and reason are fasle
