What are the minimally required steps to accomplish this?

An Adobe Commerce developer is being tasked with creating a new cron job to run a method that has already been written.

What are the minimally required steps to accomplish this?
A . Create crontab.xml and cron_groups.xml files to assign the new job to a cron group.
B . Create a crontab.xml file and set a schedule for the new cron job.
C . Create a crontab.xml file and a new system configuration in system.xml for the schedule.

Answer: C