Which two statements correctly describe how an email message is delivered from User A to User B?

Refer to the exhibit, which shows a topology diagram of two separate email domains.

Which two statements correctly describe how an email message is delivered from User A to User B? (Choose two.)

A. mx.example1.org will forward the email message to the MX record that has the lowest preference.

B. User B will retrieve the email message using either POP3 or IMAP.

C. User A’s MUA will perform a DNS MX record lookup to send the email message.

D. The DNS server will act as an intermediary MTA.

Answer: A, B