After drafting an email, how can you improve the subject line?

• A. Leave the subject line unchanged.
• B. Add more keywords to the subject to improve searchability.
• C. Shorten and reflect the main action or result described in the body.
• D. Use humor in the subject line.

Answer: (C)

A subject line should be concise and clearly reflect the main action or result described in the email body. This makes the purpose obvious at a glance and helps the message stand out in a crowded inbox.

The best choice is to shorten the subject and mirror the core action or outcome. When the email asks the recipient to do something or highlights a specific result, phrasing the subject to match that action keeps expectations accurate and improves readability. For example, if you’re asking someone to submit a report by a deadline, a subject like “Submit quarterly report by Friday” quickly tells the reader what to do and by when, aligning perfectly with what’s inside.

Leaving the subject line unchanged can be fine in some cases, but it often misses the opportunity to convey current purpose, especially if the body has been updated. Adding more keywords to improve searchability can make the line long and cluttered, which hurts quick scanning. Trying to use humor can undermine professionalism and may not land well with all recipients.