The Agricultural Revolution Is Often Referred to as "Dawn of Civilization

The Agricultural Revolution is often referred to as "dawn of civilization" because:

A) Cities and towns were established, and humans had more time for leisure activities.
B) Societies began to form where rainfall was plentiful; groups were able to cultivate plants instead of living nomadic lifestyles.
C) Tribes became nomadic, traveling to various locations in search of sustenance.
D) Animals were first domesticated as a resource for survival.