which protocol is specifically used by an email client to read emails from an email server?
Explanation
The correct answer is (d) IMAP.
Explanation:
The Internet Message Access Protocol (IMAP) is the standard protocol used by email clients to retrieve and manage messages from a mail server. Unlike protocols that might simply download and delete messages, IMAP allows for synchronization across multiple devices.
The functional relationship for email management can be summarized as:
Email Handling=SMTP (Sending)+IMAP/POP3 (Retrieving)