This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
All are true regarding idiopathic edema of woman except - 
Select and explain. 
A. It is due to estrogen mediated sodium retention, B. It is not related to menstrual cycle, C. There is increased water retention in upright position, D. ACE inhibitors can be useful in some cases
A: It is due to estrogen mediated sodium retention
Answer: A: It is due to estrogen mediated sodium retention 
Explanation: None