- A Liver cancer
- B Stomach cancer
- C Lung cancer
- D Bone cancer
Correct answer: C. Lung cancer
Explanation: Tobacco smoking is the leading cause of lung cancer, responsible for ~85% of cases. Tobacco smoke contains carcinogens (PAHs, nitrosamines, benzene). Smoking also causes cancers of mouth, throat, oesophagus, bladder, kidney, and pancreas.
Concept context
Pathogens, infectious diseases, non-infectious diseases, drugs, cancer, and public health. High NEET importance.