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: Dental
Which of the following type of malignant melanoma carries the best prognosis? 
Select and explain. 
A. Lentigo Maligna, B. Lentigo Maligna Melanoma, C. Superficial spreading type, D. Nodular melanoma
A: Lentigo Maligna
Answer: A: Lentigo Maligna 
Explanation: Lentigo Maligna has only horizontal spread of Melanoma cells at DEJ and hence carries best prognosis. It is also called as "Melanoma in situ"