(36)Answer
(Choose 1 answer)
When the superclass and all of the subclasses in generalization/specialization relationship are mapped to relational tables. Which of the following is true?
A. The same primary key is used in the superclass and the subclass tables.
B. Each table has a different primary key
C. The same primary key is used in the subclass tables.
D. The primary key of the superclass table is a foreign key in subclass tables
