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
Carcinoma of the cheek: 
Select and explain. 
A. Characteristically is columnar-celled., B. Has a recognized association with chewing gum, C. Has a recognized association with chewing betel nut, D. Has a recognized association with geographic tongue
C: Has a recognized association with chewing betel nut
Answer: C: Has a recognized association with chewing betel nut 
Explanation: None