An Administrator Needs to Look at a Log for an Application

Multiple Choice

An administrator needs to look at a log for an application on a systemd -based system. There is no log for this application in /var/log . Which of the following is another way to view the application log on this system?

A) tail -f /var/log/secure
B) journalctl -u application
C) systemctl application.service
D) watch /var/lib/application/