The mechanism of absorption in thick ascending limb is （ ）

A、Na+∶K+∶2Cl- active transport by symport
B、Na+∶K+∶2Cl- active transport by Antiport
C、Na+∶K+∶2Cl- passive transport by antiport
D、Na+∶K+∶2Cl- passive transport by symport
E、2Na+∶K+∶Cl- active transport by symport