A professional email subject line should be concise and ____________ the main purpose of the email.a.hideb.emphasizedc.summarizeClear my choice

The correct answer is: c. summarize.

Explanation

A professional email subject line serves a crucial role in communication, particularly in professional contexts. It is the first thing the recipient sees and sets the tone for the email. A well-crafted subject line should be concise and informative, effectively summarizing the main purpose of the email. This helps the recipient to quickly understand the content and importance of the message, making it easier for them to prioritize their reading. In contrast, the options "a. hide" and "b. emphasized" do not align with the goal of a subject line. Hiding information contradicts the need for clarity, and merely emphasizing without summarization can lead to ambiguity. Therefore, summarizing the email's purpose not only ensures professionalism but also enhances communication efficiency.