Business Communication SmartBook Practice Test

Subject lines should quickly convey what the message is about and how urgently it needs attention, so recipients can understand the purpose and prioritize it at a glance. The best choice nails this by including the topic, being specific, using action verbs, and indicating urgency or a timeline when appropriate, while staying brief (about 5–8 words). This keeps the line informative, actionable, and easy to scan, which increases the chance the email gets opened and acted on promptly. For example, "Budget review due Friday" or "Team meeting confirmations needed." The other options miss key aspects: a generic greeting in the subject line doesn’t summarize content or urgency; using all capital letters can look like shouting or spam; and making the subject longer than a paragraph defeats the purpose of a quick, scannable headline and risks truncation on mobile.