Read the following statements carefully.
Statement A: NaCl is returned to the ascending limb of the loop of Henle from the descending limb of vasa recta.
Statement B: The osmolarity of the filtrate increases from 300 mOsmolL–1 to 1200 mOsmol L–1 as it moves down the descending limb of Henle’s loop.
Choose the correct option from the following:
1. Only statement A is correct
2. Only statement B is correct
3. Both statements A and B are correct
4. Both statements A and B are incorrect