Which Method prevents communicable diseases? a. disease diagnosis
b. immunization exemptions
c. vaccination education
d. hospitalization

I think it's A, but I'm not sure if this is the correct answer. I apologize if it is wrong.

answer; training;

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.