Which of the following is an example of earned media?

The chosen answer, which illustrates an example of earned media, is correct because earned media refers to publicity gained through promotional efforts other than paid media. This can occur when a press release or news story about a company is shared by a news outlet without any cost to the organization. It is a reflection of the media's interest in the story and an endorsement of the company's message, providing credibility since it has not been directly paid for.

In contrast, the other options represent forms of paid media. When a company invests in a paid advertisement in a magazine, sponsors a tweet from an influencer, or creates an infomercial for television, these activities involve direct payment for exposure. Therefore, they are not classified as earned media because they do not stem from organic interest or engagement from third-party sources. Instead, earned media is often seen as more valuable because it illustrates the trust and relevance a brand has achieved within its audience and the media landscape.