Which of the Following Is a Good Example of a Cultural

Which of the following is a good example of a cultural hazard to public health?

A) During an earthquake in Japan,people are killed by falling pieces of a building.
B) Air pollution near an oil refinery releases known carcinogens into the air.
C) People living in southern Africa face some of the highest risks of developing tuberculosis.
D) Eating a high-fat diet and engaging in little exercise,a man increasingly becomes obese.