A metropolitan division
a.
can be divided into even smaller units called micropolitan divisions.
b.
is called a metropolitan megamarket if it has a population of 1,000,000 or more.
c.
it can be divided into even smaller units called metroplex divisions.
d.
are smaller subdivisions of a metropolitan statistical area that contains a population of 2.5 million or more.
e.
has its own zip code to reflect the U.S. Postal Service designation.
Answer: are smaller subdivisions of a metropolitan statistical area that contains a population of 2.5 million or more.