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: Pediatrics
Child coming with proptosis, multiple skeletal limb secondaries, sutural separation is having - 
Select and explain. 
A. Neuroblastoma, B. Medulloblastoma, C. Retinoblastoma, D. None of the above
A: Neuroblastoma
Answer: A: Neuroblastoma 
Explanation: Ans. is 'a' i.e., Neuroblastoma o Proptosia, bony metastasis and sutural separation (due to skull metastasis) suggest the diagnosis of neuroblastoma.