Which three capabilities should an administrator consider about change sets?

Which three capabilities should an administrator consider about change sets?

Choose 3 answers.
A . When a component is added to a change set, all dependent components automatically get added.
B . When custom fields are added to a change set, field-level security is automatically included.
C . When a change set is deployed to production, by default, all unmanaged Apex tests will automatically be run.
D . There is a feature that allows the user to validate a change set before deploying it.
E . To use change sets, at least one Inbound and one outbound connection must exist.

Answer: B,D,E