This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Ophthalmology
Cherry red spot is seen in all of the following except 
Select and explain. 
A. Spranger disease, B. Faber disease, C. Retinitis pigmentosa, D. Central retinal aery thrombosis
C: Retinitis pigmentosa
Answer: C: Retinitis pigmentosa 
Explanation: .