Which of the following is a known carcinogen associated with lung cancer?

Asbestos is a well-documented carcinogen that is particularly linked to lung cancer, especially in individuals who have had occupational exposure. When asbestos fibers are inhaled, they can become lodged in lung tissue, leading to inflammation, scarring, and eventually the development of cancer, including lung cancer and mesothelioma. The risk of lung cancer increases significantly among those with prolonged exposure to asbestos, highlighting its role as a significant risk factor in oncogenic processes related to lung health.

In contrast, while sodium chloride (table salt) is necessary for bodily functions, it is not classified as a carcinogen linked to lung cancer. Acetaminophen, commonly used as a pain reliever, does not have a known association with cancer, and caffeine, a widely consumed stimulant, has not been shown to increase the risk of lung cancer either. Hence, asbestos stands out as the primary carcinogen in this context, causing serious health risks when exposure occurs.