Ama Afolayan Is Chair of the National Owl Society,which Maintains

Ama Afolayan is chair of the National Owl Society,which maintains a database of all rare owls within the United States.One table will store the name,birth date,and other characteristics of all of the owls that have been registered.Each owl is uniquely identified by a registration number.A second table will contain data that link each owl to its male and female parents by means of their registration numbers.The primary key in the second table is

A) name.
B) birth date.
C) the same as the primary key in the first table.
D) a combination of primary keys in the first table.