Final answer:
An out-of-home medium refers to advertising that reaches consumers outside of their homes, such as posters, signs, and ads in public locations. All the options provided (posters in high-traffic areas, a sign in a bus shelter, an ad in a washroom) are examples of out-of-home media, which are designed to catch the public's attention with strategic placement and memorable imagery.
Step-by-step explanation:
An out-of-home medium refers to advertising that reaches the consumers while they are outside their homes. Examples of out-of-home media would include advertising platforms like billboards, posters, signs, and ads placed in transit areas and public locations. In the context of the student's question, all the given options - 1) posters located in high-traffic areas, 2) a sign for Calvin Klein jeans inside a bus shelter, and 3) an ad in a washroom - are examples of out-of-home media. These ads are placed strategically to catch the attention of a wide audience.
The effectiveness of out-of-home advertising often relies on its location and how well it succeeds in grabbing the attention of consumers. Companies seek to ensure that their advertisements are not only visible but also memorable through the use of graphic images, brand logos, and strategic placement in areas with high visibility. This approach is part of a broader strategy of synergistic advertising, delivering a consistent message across multiple platforms.