Environmental

In South Dakota, a seller's disclosure about the presence of radon gas in a home is important because:

ARadon is only dangerous in below-freezing temperatures
BRadon is a naturally occurring radioactive gas that can accumulate in homes and is a leading cause of lung cancer✓ Correct
CFederal law requires radon levels to be zero before a home can be sold
DRadon gas only affects properties near water

Explanation

Radon is a naturally occurring radioactive gas that can seep into homes from the soil and accumulate to dangerous levels. The EPA estimates radon is the second leading cause of lung cancer in the U.

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