An advertisement for vice toothpaste, which is targeted at smokers and coffee drinkers,

an advertisement for vice toothpaste, which is targeted at smokers and coffee drinkers, stresses how vice is the best brand on the market for this problem, as it was scientifically designed to remove the stains associated with these consumption behaviors. because smokers and coffee drinkers are already aware of their potential for stained teeth, vice toothpaste merely has to convince them that their brand is the superior toothpaste on the market that can solve this specific problem. what type of problem recognition is vice addressing in their advertisement?