Why has the normal unit price of advertising specialties selected by advertisers increased to the 5 range?

Question 1 options:

There is a proliferation of advertising media

Inflation has pushed the cost of all media upward

People tend to associate the quality of a company with the quality of the specialty items it gives

Retailers can abuse trade deals

Over 80 percent of the advertisers in the United States depend on specialty advertising as their primary media vehicle