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: Gynaecology & Obstetrics
In contrast to AUB - O, AUB - E is 
Select and explain. 
A. More responsive to cyclic oral progestins., B. Relatively unresponsive to progestins., C. Responds to short duration treatment with MPA., D. Less responsive to combined OCPs.
B: Relatively unresponsive to progestins.
Answer: B: Relatively unresponsive to progestins. 
Explanation: AUB - E (endometrial) is relatively unresponsive to cyclic oral progestins.