Vaping is growing in popularity among teens, and the federal government recently increased the national age to purchase tobacco and vaping devices from $18$ to $21$ to curtail it$.$ Which of these is the most important reason that vaping companies should not consider teens to be in the market for their products?

Multiple Choice

Teens do not have the ability to buy because of legal restrictions.

Vaping products do not satisfy any unmet needs for teens.

The teen market is already heavily targeted by companies with massive advertising budgets.

Teens acquire these products through the black market.

Marketers should only target adults, regardless of the product.