Explanation:

- Primary Key: A primary key is a specific choice of a minimal super key that uniquely identifies a record in a table. Usually, it consists of one or more columns.

- Foreign Key: A foreign key is a field in one table that uniquely identifies a row of another table. It establishes a relationship between two tables.

- Super Key: A super key is a combination of one or more attributes that uniquely identifies a record in a table. It may include additional attributes that are not necessary for unique identification.

- Candidate Key: A candidate key is a minimal set of attributes that can uniquely identify a table record. It is a potential choice for the primary key.

The correct answer is: Option:3, Super key