Why Is Tobacco Use Such a Concern for U

Why is tobacco use such a concern for U.S. public health officials?

A) Cigarette companies are gaining more and more freedom in advertising.
B) More people smoke tobacco in the United States compared to any other country.
C) Tobacco use is becoming more common among those 70 years old and older.
D) Tobacco use is the most preventable cause of disease and death in the United States.