This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Acquired Cataract, Subject name: Ophthalmology
A 10-year-old child with Fanconi's syndrome. 
Select and explain. 
A. Vogts striae, B. Fleischer ring, C. KF ring, D. Stocker line
C: KF ring
Answer: C: KF ring 
Explanation: Ans. (c) KF ring.