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
Raspberry tumour is another name for - 
Select and explain. 
A. Umbilical fistula, B. Umbilical granuloma, C. Umbilical adenoma, D. Meckel's diverticulum
C: Umbilical adenoma
Answer: C: Umbilical adenoma 
Explanation: None