Question 30

They should do so, because radon is now considered to be one of the causes of lung cancer.

Radon is a colorless and odorless gas that can be harmful to health, and it is recognized as a significant risk factor for lung cancer. Therefore, advising prospective buyers to check for radon is a responsible recommendation.

A) it is unlikely that radon would be a problem in that area

This option is incorrect because it downplays the potential risk of radon exposure, which can occur in any area regardless of geographic location. Assumptions about the absence of radon based solely on location are not reliable.

B) as long as they are non-smokers, it should not be an issue

This statement is misleading as it suggests that non-smokers are not at risk for radon-related health issues. In reality, radon poses a danger to all individuals, regardless of smoking status, making this advice insufficient.

C) they should do so, because radon is now considered to be one of the causes of lung cancer

This is the correct response. It highlights the importance of checking for radon due to its established link to lung cancer, making it a crucial step for prospective buyers to ensure their safety and health.

D) they need not do so, because if radon were present, there would be an odor that would make it easy to detect

This option is incorrect as radon is both odorless and tasteless, which means it cannot be detected by human senses. Relying on smell to assess radon presence is not only inaccurate but also potentially dangerous.

Conclusion

The best course of action for prospective buyers is to check for radon, as it is associated with serious health risks, including lung cancer. Options A, B, and D fail to acknowledge the dangers of radon and provide misleading information, while option C correctly emphasizes the need for precautionary measures.