Final answer:
Media departments are responsible for reviewing information on demographics and radio listenership, which helps in the effective targeting of advertisement campaigns. They negotiate advertising prices and are critical in aligning ads with the target audience.
Step-by-step explanation:
Which of the following statements is true of media departments? Among the options provided, the correct statement is that media departments review information on demographics and radio listenership. Media departments utilize such information to tailor media campaigns and ensure advertisements align with the targeted audience. Their role is essential for advertisers to reach the desired demographic effectively.
Media departments are not primarily creative, as that role typically belongs to the creative department. They do have the ability and the authority to negotiate prices, contrary to one of the options provided. Media departments are also not responsible for creating clients' advertising messages; this is typically the job of the creative or marketing team. Lastly, media departments are not generally headed by an account planner; this role is more aligned with managing client relationships and project management within an advertising agency.
Overall, media departments play a critical role in bridging the gap between advertisement content creators and the target audience by leveraging demographic data and listenership statistics.