Which of the Following Is True of Health Problems Stemming

Which of the following is true of health problems stemming from air pollution on a global level?

A) In many low-income countries, men have higher exposure to unsafe levels of particulate pollution due to the use of wood or coal burning stoves.
B) Most deaths are attributable to cancer.
C) Most deaths occur in high- and middle-income countries.
D) Most deaths are caused by heart, cerebrovascular, and lung diseases.