This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pharmacology
Which of the following statement is not true about diuretics 
Select and explain. 
A. Acetazolamide is a carbonic acid anhydrase stimulant, B. Thiazides act on coical diluting segment of nephron, C. Furosemide is a high ceiling diuretics, D. Spironolactone is an Aldosterone antagonist
A: Acetazolamide is a carbonic acid anhydrase stimulant
Answer: A: Acetazolamide is a carbonic acid anhydrase stimulant 
Explanation: Acetazolamide is an inhibitor of the enzyme carbonic anhydrase.