What must you do before you can run CronJobs in SAP Commerce Cloud?

What must you do before you can run CronJobs in SAP Commerce Cloud?
A . Set a reference to a specific job implementation within the CronJob.
B. Assign a CronJob to a group of nodes to run on a configured node group.
C. Configure a trigger to run at a specified time.
D. Assign a CronJob to run on a node with a specified ID.

Answer: C