Which of the following factors is responsible for the formation of concentrated urine?

1. A. Hydrostatic pressure during glomerular filtration
2. B. Low levels of antidiuretic hormone
3. C. Maintaining hyperosmolarity towards inner medullary interstitium in the kidneys.
4. D. Secretion of erythropoietin by Juxtaglomerular complex

Attempt this NEET 2019 Biology question free — pick an option to reveal the correct answer and a step-by-step explanation. Then join NEET Mastery Quest to practise 15,000+ PYQ and 2027-syllabus questions.