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
In a child with phthisical eye of unknown etiology following possibility should be kept in mind: 
Select and explain. 
A. Bih trauma, B. Still's disease, C. Retinoblastoma, D. Untreated congenital glaucoma
C: Retinoblastoma
Answer: C: Retinoblastoma 
Explanation: Ans. Retinoblastoma