A 54-year-old G3P2 woman presents to your office complaining of vaginal bleeding for the past few months despite being menopausal for 3 years. Her medical history is significant only for HTN. On...

A 54-year-old G3P2 woman presents to your office complaining of vaginal bleeding for the past few months despite being menopausal for 3 years. Her medical history is significant only for HTN. On further history, the patient reveals that she stopped taking her replacement estrogen and progesterone several months ago because of concerns about heart disease. You perform an endometrial biopsy, which returns negative for cancer or hyperplasia. You reassure the patient that her bleeding is likely due to hormone withdrawal and advise her to return for repeat biopsy if the bleeding is persistent.Which of the following is a potential cause of postmenopausal bleeding?

A. Vaginal atrophy

B. Cervical cancer

C. Endometrial atrophy

D. Endometrial polyps

E. All of the above