Which two statements concerning requirements for enabling state models on a business component are true?

Which two statements concerning requirements for enabling state models on a business component are
true? (Choose two.)

A.
The field used must be a single-valued field.

B.
The field used cannot contain more than twelve states.

C.
The field used should have no dependencies on other fields.

D.
The field used should not be named in any Workflow processes.