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: Ophthalmology
Bilateral inferior lens subluxation is seen in? 
Select and explain. 
A. Marfan syndrome, B. Homocysteinuria, C. Ocular trauma, D. None of the above
B: Homocysteinuria
Answer: B: Homocysteinuria 
Explanation: Ans. is `b' i.e., Homocysteinuria