Study the graph about the negative effects of indoor air pollution. A pie graph titled Indoor Air Pollution-Caused Deaths and Breakdown by Disease. Diseases listed by greatest to least common: Stroke, Ischemic heart disease, C O P D, Acute lower respiratory infections in children, Lung cancer.

What does the graph show about the importance of clean air?

People have a lower risk of dying from COPD when compared to acute lower respiratory infections.
The health risk is the highest for getting lung cancer when people are exposed to indoor air pollution.
Most people will die from the negative health effects associated with stroke as indoor dirty air builds up.
The risk of developing acute lower respiratory infection and ischemic heart disease is the same when exposed to indoor air pollution.