17 y.o. girl with primary amenorrhea. Breast development is Tanner 2, although she has axillary and pubic hair of adult type. O/e no palpable masses in the abdomen, vaginal examination is not performed. She is short (like 140 cm?).
a. Mullerian dysgenesis
b. Ovarian dysgenesis
c. Pitutary tumor
d. PCOS