Which of the following command is used to view iptables logs on Ubuntu and Debian distributions?

A. $ tailf /var/log/sys/kern.log

B. $ tailf /var/log/kern.log

C. # tailf /var/log/messages
D. # tailf /var/log/sys/messages

Reference: https://tecadmin.net/enable-logging-in-iptables-on-linux/