During urine formation, which of the following process create thigh osmotic pressure in the uriniferous tubule?
Active Na+ absorption, followed by absorption of Cl−
Active Cl− absorption, followed by absorption of Na+
Active secretion of Na+ into efferent arteriole followed by absorption of Cl− into the efferent renal arteriole
Active secretion of Cl− and absorption of Na+ into the efferent renal arteriole
