This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors, Subject name: Ophthalmology
Increased LDH in Aqueous Humor suggest a diagnosis of - 
Select and explain. 
A. Galactosemia, B. Retinoblastoma, C. Glaucoma, D. Gyrate atrophy
B: Retinoblastoma
Answer: B: Retinoblastoma 
Explanation: Lactic dehydrogenase level is raised in aqueous humour in retinoblastoma. Ref: ak khurana 6th edition