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
Melanoma is 
Select and explain. 
A. Benign tumour of skin and mucous membrane, B. Malignant tumour of skin and mucous membrane, C. Malignant tumour of melanophores, D. Benign tumor of melanophares
B: Malignant tumour of skin and mucous membrane
Answer: B: Malignant tumour of skin and mucous membrane 
Explanation: None