Question

Which describes a composite primary key? Check all that apply.

A. A composite primary key applies to one field.
B. A composite primary key applies to more than one field.
C. A composite primary key is selected from Design view.
D. A composite primary key is selected from Datasheet view.
E. A composite primary key requires the use of the Control key.

Answer 1

A composite primary key applies to more than one field.  A table can have only one primary key, which may consist of single or multiple fields.
A composite primary key is selected from Design view.  In Design view, you can use the Primary Key button to assign or remove the primary key designation for the selected field or fields.