Question 6 (1 point) Which ONE of the following statements about the meaning of the terms Key, Superkey, Minimal Key, Primary Key, and Foreign Key is FALSE? A candidate key is a minimal key but a minimal key might not be a candidate key. A proper subset of a superkey might be candidate key. A primary key is a minimal key but a minimal key might not be a primary key. A foreign key should refer to the primary key of some table including possible the same table in which it appears. The superset of a superkey is also a superkey