Personal hygiene is important to others because
a.
it to prevent the spread of disease
b.
you look more pleasing to the eye
c.
everyone should look the same
d.
all of the above

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.

the answer is a