Which three statements are true about a job chain?

Which three statements are true about a job chain?

A.
It can be executed using event-based or time-based schedules.

B.
It can contain a nested chain of jobs.

C.
It can be used to implement dependency-based scheduling.

D.
It cannot invoke the same program or nested chain in multiple steps in the chain.

E.
It cannot have more than one dependency.