A nurse is developing a lung cancer prevention education program for a diverse community group. Which statement by a participant indicates a correct understanding of multiple risk factors for lung cancer?

Radon gas is only a concern in newer homes with modern construction materials, so older homes are safe from this risk."

"As long as I quit smoking, my family history and workplace exposures won't affect my lung cancer risk."

"My risk includes cigarette smoking, exposure to secondhand smoke at work, and the radon levels in my basement."

"Air pollution only affects people who smoke, so nonsmokers don't need to worry about environmental exposures."