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
Which of the following is false about lip carcinoma? 
Select and explain. 
A. Smoking is a risk factor, B. More common in lower lip, C. Lowe lip Ca has worst prognosis among all oral cancers, D. Distant metastasis is late
C: Lowe lip Ca has worst prognosis among all oral cancers
Answer: C: Lowe lip Ca has worst prognosis among all oral cancers 
Explanation: Lower lip cancer which is more common and has best prognosis among all oral cancers.