" Frequently, beer manufacturers run television ads showing attractive, young people having fun and, of course, drinking their beer. These ads are designed primarily to create: "

To create interest in the youths that it's actually for them mostly.

Explanation:

The way an advert is carried out or planned describes who they are communicating to. The content of the advert targets about 80% of it's market by the content it uses when carrying out the advert. When as advert uses young people frequently, it is primarily targeting the young people to build interest in it's product. So the content of an advert describes the market it wants to sell to.

If beer companies makes use of young people for their adverts then it is known that they simply want more patronize and interest from those young people.