Final answer:
An effective letter to the editor should have a specific request for employment or a job referral, and it should include an argument supported by examples or personal experiences.
Step-by-step explanation:
An effective letter to the editor should have a specific request for employment, or a job referral. It should also have an argument supported by examples or personal experiences. This helps to persuade the readers and make the letter more persuasive. The other options, such as informal language to set a casual mood and an announcement of an event or contest, are not features of an effective letter to the editor.
Unlike other forms of business writing, a letter to the editor is not the place for employment requests, informal language, or announcing events. Instead, it should be factually accurate and written in a respectful tone, addressing the editor and the publication’s readership professionally. The structure of the letter typically includes an introduction stating your purpose for writing, the main body containing your argument and supporting details, and a conclusion that emphasizes the importance of the issue.