Tom Wilson Is Chairman of the Rare Car Club,where He

Tom Wilson is chairman of the Rare Car Club,where he maintains a database of registered rare cars and their history.One table will store the model,make,vehicle identification number,and other characteristics of all of the registered rare cars.Each rare car is uniquely identified by a registration number.A second table will contain data that link each rare car to its most recent estimated fair market value by means of their registration numbers.The primary key in the first table is

A) vehicle identification number.
B) registration number.
C) model.
D) make.