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
Most severe form of malignant malenoma is - 
Select and explain. 
A. Superficially spreading, B. Nodular infiltrating type, C. Those arising in lower limb, D. Those in choroid
B: Nodular infiltrating type
Answer: B: Nodular infiltrating type 
Explanation: None