How do you map an identifying relationship in an ERD to a relational schema?

• A. The child table includes no reference to the parent table.
• B. The child table's primary key is independent of the parent keys.
• C. The child table includes the parent table's primary key as part of its composite primary key or as a foreign key with part of a composite primary key.
• D. The parent table's primary key becomes a foreign key in the child with no key involvement.

Answer: (C)