Final answer:
An informative subject line is necessary for a good e-mail.
Step-by-step explanation:
An informative subject line is necessary for a good e-mail. This statement is true.
A subject line provides a brief summary of the content of the email and helps the recipient understand the purpose of the message.
It should be clear, concise, and relevant to the email content to ensure effective communication.
Learn more about E-mail subject lines