Best prognosis is seen in -: (A) Ca lip, (B) Ca tongue, (C) Ca palate, (D) Ca floor of mouth
Answer is A. 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.