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Consider the following application layer services:

1. Domain names to $\text{IP}$ Address mapping
2. Data communication over the World Wide Web
3. Electronic mail transmission
4. Retrieve e-mail from a remote server
5. Transfer files from one host to another host

Which one of the following order of application layer protocols is correct for the above services?

1.  $\text{DNS, HTTP, POP, SMTP, FTP}$
2.  $\text{DNS, HTTP, SMTP, POP, FTP}$
3.  $\text{DNS, FTP, SMTP, POP, FTP}$
4.  $\text{HTTP, FTP, POP, SMTP, DNS}$