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
Best prognosis is seen in - 
Select and explain. 
A. Ca lip, B. Ca tongue, C. Ca palate, D. Ca floor of mouth
A: Ca lip
Answer: A: Ca lip 
Explanation: Carcinoma of oral cavity 

Most common type of Carcinoma of oral cavity is squamous cell carcinoma
In the oral Cavity, tongue (30%) is the most common site followed by lip (17.4%) and the floor of mouth (16.4%)
The mortality from squamous Carcinoma also varies by site in the mouth, with the lowest mortality from lip Cancer and the highest for Cancer of the Tongue.