This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2018, Subject name: Pediatrics
Ectopia lentis in a child is seen in which of the following disease? 
Select and explain. 
A. Sarcoidosis, B. Homocystinuria, C. Alkaptonuria, D. Wilson disease
B: Homocystinuria
Answer: B: Homocystinuria 
Explanation: None