In a relational database, the modeling of a One to one relationship is possible with a
minimum of how many tables?

A.
one

B.
two

C.
three

D.
two per relationship

E.
one per direction of each relationship

Explanation:
One to one A one to one relationship exists when for every value of a
there is one and only one corresponding value of b, and for every value of b there is
one and only one corresponding value of a. One to one relationships are modeled
within a single table.