Which of the following is an effective channel for conveying official instructions in a business?

• A. Emails
• B. Social media
• C. Notices and posters
• D. Word of mouth

Answer: (A)

For official instructions, a formal written channel that creates a clear, traceable record is essential. Emails fit this role well because they go directly to the intended recipients, allow a formal tone, and provide a written record that can be stored, searched, and revisited. They can include attachments like policies or checklists and let you set subject lines and deadlines so everyone understands what’s required and by when. You can target a specific group or distribute company-wide, making communication efficient and controlled. In contrast, social media is often public and not suitable for confidential or precise instructions; notices and posters may miss some readers and lack proof of delivery; word of mouth risks miscommunication and has no verifiable record. So emails are the most effective channel for conveying official instructions.