Divorce, according to the passage, ................ .

The act by which a valid marriage is ended
is called divorce. It usually frees the two
parties to remarry. Today, divorce is almost
universally allowed, and in Roman
Catholic countries, restrictions on divorce
are undergoing gradual relaxation. In
regions where the influence of ancient
religious authority is still strong, divorce
may be difficult and rare, especially when,
as among Hindus, the religious tradition
views marriage as permanent. On the other
hand, custom may make divorce a simple
matter. Among some Pueblo Indian tribes,
a woman could divorce her husband simply
by leaving his moccasins on the doorstep.
Today principles such as mutual consent
are making divorce increasingly acceptable
in the industrialised parts of the world.