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: Pathology
Which one of the following is a connective tissue tumour: 
Select and explain. 
A. Lipoma, B. Melanoma, C. Carcinoma, D. Papilloma
A: Lipoma
Answer: A: Lipoma 
Explanation: None