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: Surgery
Spontaneous regression of malignant tumour is seen in - 
Select and explain. 
A. Burkits lymphoma, B. Neuroblastoma, C. Wilm's tumour, D. All
B: Neuroblastoma
Answer: B: Neuroblastoma 
Explanation: Ans. is 'b' i.e., Neuroblastoma Also in Retinoblastoma, malignant melanoma, choriocarcinoma