A 36 year old woman has noticed, absence of menses for the last 4 months. A pregnancy test is negative. Serum levels of luteinizing hormone and follicle stimulating hormone are elevated and the serum estradiol levels is low. These findings suggest :: (A) Bilateral tubal obstruction, (B) Polycystic ovarian disease, (C) Premature menopause, (D) Exogenous estrogen administration
Answer is C. Premature menopause