In DNS terms what is the purpose of an "A" record?

In DNS terms what is the purpose of an "A" record?

• Resolves the MAC address of a host from its name
• Resolves the IP address of a host from its name
• Resolves the IP address of a host from the MAC address
• Resolves the Host name from its MAC address 

 

EXPLANATION

https://support.dnsimple.com/articles/a-record/
An A record maps a domain name to the IP address (IPv4) of the computer hosting the domain. Simply put, an A record is used to find the IP address of a computer connected to the internet from a name.

SOURCE

https://support.dnsimple.com/articles/a-record/