Some states restrict the use of cigarettes in restaurants and other public buildings. Why do some states restrict the use of cigarettes in restaurants and other public buildings?
A) To decrease the need for costly air-purification systems in public buildings.
B) To increase the sale of e-cigarettes and similar products with a higher sales tax.
C) To encourage the patronage of facilities where smoking is permitted.
D) To discourage the use of these products and limit secondhand smoke exposure.
