This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Non communicable diseases, Subject name: Social & Preventive Medicine
The most common cancer, affecting both male and females of the world, is - 
Select and explain. 
A. Cancer of the pancreas, B. Buccal mucosa cancer, C. Lung cancer, D. Colo-rectal cancer
C: Lung cancer
Answer: C: Lung cancer 
Explanation: <p> Earlier it was lung cancer. But now it is lip,oral cavity cancer. Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:384.& Text book of community medicine by Sundar Lal,2nd ed, pg no:613. <\p>