George works for a national sporting goods store in the marketing department. He wants to place advertisements in sports magazines that target teenagers. He notices that the sports preferences of teenagers tend to differ in different parts of the country. In one geographic area, for instance, teens are highly into skating culture. Along the coast, however, many teenagers are more interested in surf culture. Because these target markets differ, George should probably try to place advertisements in _________________ of magazines.

Group of answer choices

special editions

national issues

ad inserts

geographic editions

regional issues