This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Childhood Tumors, Subject name: Pediatrics
A 2-year-old child presented with the following abnormality. There is a history of similar illness in his father. What might be the underlying condition responsible? 
Select and explain. 
A. Retinitis pigmentosa, B. Acute Leukemia, C. Retinoblastoma, D. Coloboma
C: Retinoblastoma
Answer: C: Retinoblastoma 
Explanation: c. RetinoblastomaLeucocoria or white eye reflex is present in left eye; Presence of leukocoria in a young child with a positive family history suggests a diagnosis of Retinoblastoma