This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diuretic, Subject name: Pharmacology
Furosemide acts by inhibiting - 
Select and explain. 
A. Na+-K+-2Cl- pump, B. Na+-Cl- pump, C. Carbonic anhydrase, D. Epithelial Na+ channels
A: Na+-K+-2Cl- pump
Answer: A: Na+-K+-2Cl- pump 
Explanation: Ans. is 'a' i.e., Na+-K+-2C1- pump o The major site of action is thick ascending limb of loop of Henle where they inhibit Na+K+2Cl'.o Has been explained in previous sessions