Which two statements are true about a job chain?

Which two statements are true about a job chain? (Choose two.)

A.
A job chain can contain a nested chain of jobs.

B.
The jobs in a job chain cannot have more than one dependency.

C.
A job of the CHAIN type can be run using event-based or time-based schedules.

D.
The jobs in a job chain can be executed only by using the events generated by the Scheduler