This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lens, Subject name: Ophthalmology
Anterior lenticonus is found in 
Select and explain. 
A. Alpo syndrome, B. Lowe's syndrome, C. Down syndrome, D. Willium syndrome
A: Alpo syndrome
Answer: A: Alpo syndrome 
Explanation: Alpos syndrome is familial hemorrhagic nephritis Refer: Khurana 6th edition page number 218