Question

which of the following is true of cigarette smoking and cancer? cigarette smoking automatically lead to cancer. cigarette smoke contains cocarcinogens that combine with other chemicals to cause cancer. cigarette smoking can lead to only stomach and lung cancers. chances of developing this lung cancer is 25 times lower for smokers than non - smokers.

Explanation:

Cigarette smoke contains carcinogens like poly - cyclic aromatic hydrocarbons and nitrosamines. These carcinogens can interact with other chemicals in the body and contribute to cancer development. Smoking doesn't automatically lead to cancer as it depends on various factors like genetic susceptibility, duration and intensity of smoking etc. Smoking increases the risk of multiple cancers not just stomach and lung. The risk of lung cancer for smokers is about 25 times higher than non - smokers.

Answer:

C. Cigarette smoke contains cocarcinogens that combine with other chemicals to cause cancer.