Which two statements are true regarding constraints?

[answerhappygod]

Which two statements are true regarding constraints?

A. A table can have only one primary key and one foreign key.
B. A table can have only one primary key but multiple foreign keys.
C. Only the primary key can be defined at the column and table levels.
D. The foreign key and parent table primary key must have the same name. E. Both primary key and foreign key constraints can be defined at both column and table levels.