What is the file extension of an mail mailbox file? A. mbox B. ebox C. embox D. eox

The correct answer is A. mbox.

An mbox file is a text file that contains a list of email messages. Each message is represented by a line of text that

contains the message’s sender, recipient, subject, and body. Mbox files are often used by email clients to store messages.

The other options are incorrect. B. ebox is not a valid file extension for an email mailbox file. C.

embox is a valid file extension, but it is not commonly used. D. eox is not a valid file extension.