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
Most common cancer world wide - 
Select and explain. 
A. Lung, B. Prostate, C. Liver, D. Kidneny
A: Lung
Answer: A: Lung 
Explanation: <p> Most common cancer among world is lung cancer. Reference:Park's textbook of preventive and social medicine,K.Park,23rd edition,page no:382.<\p>