The correct answer is B. Inbox.
An inbox is a folder in an email client where incoming emails are stored. It is the default folder for new emails, and it is typically the
first folder that users open when they check their email.An outbox is a folder in an email client where outgoing emails are stored before they
are sent. It is typically used to store emails that have been composed but not yet sent.A sent folder is a folder in an email client where sent emails are stored. It is typically used to store a copy of all emails that have been sent.
A spam folder is a folder in an email client where spam emails are stored. Spam emails are unsolicited emails that are typically sent in bulk to a large number of recipients.
I hope this helps! Let me know if you have any other questions.