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: Medicine
A 20 yr old female presents with primary amenorrhea. She has low LH, FSH, estrodial levels. She has anosmia and no secondary sex characteristics on examination. What is the likely diagnosis? 
Select and explain. 
A. Kaagener syndrome, B. Kallman syndrome, C. Alpo's syndrome, D. None
B: Kallman syndrome
Answer: B: Kallman syndrome 
Explanation: Kallmann syndrome Kallmann syndrome is caused from defective gonadotropin releasing hormone (GnRH) synthesis. Clinical features- Anaemia & hyposmia due to olfactory bulb agenesis & hypophasia. Color blindness, optic atrophy, nerve deafness. Cleft palate, cryptoorchidism & mirror movements (neurological defects) In males- delayed pubey, micropenis. In females- primary amenorrhea, failure of secondary sexual development. Low LH & FSH levels & sex steroids.