How is a country-specific field created for MDF foundation objects?

Foundation Objects

How is a country-specific field created for MDF foundation objects?
A . As a generic object with a composite association to the MDF foundation object
B . As an HRIS element in the Country Specific Field for Corporate Data Model with a Valid When association to the MDF foundation object
C . As a generic object with a Valid When association to the MDF foundation u object
D . As an HRIS element in the Corporate Data Model with a composite association to the MDF foundation object

Answer: C