Consider different activities related to email.m1:Send an email from a mail client to mail server m2:Download an email from mailbox server to a mail client m3:Checking email in a web browser Which is the applicable level protocol user in each activity?

Consider different activities related to email.m1:Send an email from a

1.	Consider different activities related to email.m1:Send an email from a mail client to mail server m2:Download an email from mailbox server to a mail client m3:Checking email in a web browser Which is the applicable level protocol user in each activity?
A.	m1:HTTP, m2:SMTP, m3:POP
B.	m1:SMTP, m2:FTP, m3:HTTP
C.	m1:SMTP, m2:POP, m3:HTTP
D.	m1:POP, m2:SMTP, m3:IMAP
Answer» D. m1:POP, m2:SMTP, m3:IMAP