Which of the following is NOT a common advertising medium?

Seasonal promotions are not classified as a common advertising medium. Instead, they represent a marketing tactic or strategy used to capitalize on specific times of the year, such as holidays or seasonal changes. While seasonal promotions can be implemented through various advertising mediums like television, radio, or direct mail, they themselves do not constitute a medium for delivering advertising content.

In contrast, television is a recognized medium due to its broad reach and ability to convey messages through visual and auditory elements. Radio serves as another established medium that effectively engages audiences through sound. Direct mail, which encompasses sending physical promotional materials to targeted audiences, is also a widely used advertising medium that allows for personal engagement. Understanding these distinctions helps clarify the difference between a medium that conveys advertising messages and a promotional approach that utilizes various media to reach consumers.