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
Numbness of lip seen with no previous dental treatment 
Select and explain. 
A. Meta static carcinoma, B. Central nervous system lesion, C. Osteomyelitis, D. Infection
A: Meta static carcinoma
Answer: A: Meta static carcinoma 
Explanation: None