This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Gynae), Subject name: Gynaecology & Obstetrics
All are risk factors for ca endometrium except - 
Select and explain. 
A. Tamoxifen, B. Multiparity, C. Obesity 8c hypertension, D. Late menopause
B: Multiparity
Answer: B: Multiparity 
Explanation: Ans. is 'b' i.e., Multiparity Rick Factors for Endometrial CA (Estrogen-dependent tumor):* Nulliparity* Early menarche, Late menopause* Obesity* Diabetes mellitus and hypertension* Unopposed estrogen therapy/Anovulation* Tamoxifen therapy* Atypical endometrial hyperplasia* Obesity, hypertension, and diabetes mellitus associated with CA endometrium = corpus CA syndrome* OC PILLS, POP, DMPA, MIRENA, Multiparity are all protective for CA endometrium