Almost always, labor unions bargain and negotiate for "all of the above" since they were formed during the Industrial Revolution when worker conditions were very dangerous.
The closest answer that i can think of is categorized by consumer. By consumer, we are saying that you have to categorize them based on what they like meaning based on what they like at their age. For example, if you are going to market a pizza store to them, one of the best ways to do that is to position your pizza store as a place for friends to hang out because teenagers, at that age, love to hang out with friends and to be cool. So you have to categorize a teenage market by their interests when they are at that certain adolescent age
