Which records must be entered in a zone file in order to use “Round Robin Load Distribution” for a web server?

Which records must be entered in a zone file in order to use "Round Robin Load Distribution" for a web server?

A.
www.example.org. 60 IN A 192.168.1.1
www.example.org. 60 IN A 192.168.1.2
www.example.org. 60 IN A 192.168.1.3

B.
www.example.org. 60 IN A 192.168.1.1;192.168.1.2;192.168.1.3

C.
www.example.org. 60 IN A 192.168.1-3

D.
www.example.org. 60 IN RR 192.168.1:3

E.
www.example.org. 60 IN RR 192.168.1.1;192.168.1.2;192.168.1.3