Which of the following is not true about a one-to-many relationship?

a. The table on the “one” side is also called the parent or left table.

b. The table on the “one” side may or may not have related records in the “many” table.

c. The table on the “many” side may have orphan records, especially if referential integrity is not enforced.

d. The table on the “one” side may have orphan records.