Final answer:
Variations in program content, zipping and zapping, and the use of interconnects allow for audience selectivity on television.
Step-by-step explanation:
Audience selectivity on television is possible as a result of variations in program content, zipping and zapping, and the use of interconnects. Variations in program content refer to the different types of TV programs available, such as scripted dramas, reality shows, and news programming, which attract different audience demographics. Zipping and zapping are audience behaviors where they fast-forward through commercials or change channels during commercial breaks, allowing viewers to be more selective in the ads they watch. The use of interconnects refers to the ability of cable television companies to gather data on their viewers and target advertising accordingly. These factors all contribute to the selectivity of the television audience.