What two attributes must be contained in a composite entity? Use proper terminology in your answer.

A. The composite entity must at least include the primary keys of the (parent) entities it references

B. The composite entity must at least include the foreign keys of the (parent) entities it references.

C. The composite entity must at least include the primary key of the composite (child) entity

D. The composite entity must at least include the foreign key of the composite (child) entity.