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
A 16-year-old girl with height 5inches present with primary amenorrhea and rising FSH . The histological finding most consistent with her conditions is 
Select and explain. 
A. Marfan syndrome, B. Corpus luteal hemorrhage, C. Low oocyte in ovary, D. Pituitary Apoplexy
C: Low oocyte in ovary
Answer: C: Low oocyte in ovary 
Explanation: Hypergonadotrophic Primary Amenorrhea
Causes

Abnormal sex chromosomes: 45,OX, Abnormal X
Normal sex chromosomes: 46 XX Pure gonadal dysgenesis, Swyer's syndrome, Savage syndrome

Characteristics

Gonadal failure
These women have streak ovaries with the absence of ovarian follicles
No estrogen production
Elevated levels of FSH
A progesterone challenge test is negative