There is the possibility that setting maximum rent may ______.

A．The western area near the coast.
B．The central mountainous region.
C．The eastern forests and jungles.
D．The west coast of South America.

A．Because we have many specialists who can do most of the jobs.
B．Because we have more and more working people.
C．Because we have computers and such things to help us.
D．Because our society is divided into sub-groups.