The Proportion of Tobacco Smokers Who Use Tobacco Abusively and Compulsively-That

The proportion of tobacco smokers who use tobacco abusively and compulsively-that is,on a day-by-day,hour-by-hour basis,is:

A) none,or a minuscule proportion
B) a substantial minority-roughly a quarter of all smokers
C) roughly half
D) a substantial majority-roughly three-quarters of all smokers
E) all or nearly all