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
[{'content': 'Most common cancer world wide \nSelect and explain. \nA. Lung, B. Prostate, C. Liver, D. Kidney', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Most common cancer in males in India → Oro-pharyngeal Ca (Aero-digestive Ca).\nMost common cancer in males in world → Lung Ca. o Most common cancer in females in India → Cervical cancer,\nMost common cancer in females in world → Brast Ca. o Most common overall cancer in the world (combined male & female) → Lung cancer,\nMost common cancer related death in males in India & in world → Ca lung, o Most common cancer related death in females in India & in world → Breast cancer.', 'role': 'assistant'}]