Final answer:
The earliest animal to be fully domesticated was the wild cattle located within the Fertile Crescent.
Step-by-step explanation:
The statement that the earliest animal to be fully domesticated was the wild cattle located within the Fertile Crescent is True. The Fertile Crescent, which includes parts of modern-day Iraq, Syria, Lebanon, Israel, and Jordan, was one of the first regions in the world where humans began practicing agriculture and domesticating animals. The region had many advantages, including the presence of nutritious staple crops like wheat and barley, as well as native animal species that were eventually domesticated, such as cattle, sheep, and goats.