Answer:
True.
Step-by-step explanation:
Selling tobacco to underage people is illegal. In the United States, the smoking age variates depending on the states, but most of them have the minimum age as 21, and a 21 yeard old person isn't an adolescent.
Now, federal law goes even further, because advertising tobacco to adolescents is also illegal, because it encourages them to consume that product.
Therefore, the given state is true. It's illegal to sell tobacco to adolescents.