This question is tricky. Some cities in the United States have recently established the minimum age for legal tobacco use at 21 years old. but for the majority of the cities it is 18 years old.
Anyway, the answer is B.
In some countries, the legislative approach is to prohibit the sale (and possibly consumption) of persons below a certain age (usually 18 or 21). The sale of tobacco is completely banned in some countries like Bhutan since 2004 and Turkmenistan since 2016.
No you should know this one considering you are awake
