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: Social & Preventive Medicine
“Field carcinogenesis” is seen in 
Select and explain. 
A. Breast carcinoma, B. Colon carcinoma, C. Brain tumour, D. Head and neck carcinoma
D: Head and neck carcinoma
Answer: D: Head and neck carcinoma 
Explanation: None