Correct Answer: Three

Solution : The correct option is Three.

There are three types of receivers in a typical email system:

• To: This is the email's primary recipient. The message is sent to the people or addresses specified in the "To" column.
• Cc (Carbon Copy): The recipients included in the "Cc" field are not the primary recipients, but they are aware of the email's content.
• Bcc (Blind Carbon Copy): Used to preserve the privacy of secondary receivers or when sending a message to a large number of persons.