Answer:
Domestication of certain animals
Step-by-step explanation:
Civilization is simply defined as the situation when a particular culture or society becomes more advanced than it was before.
Some of the signs of the civilization of world governments include advanced farming techniques, highly developed language, a more developed system of government which includes the creation and use of written law, etc.
However, the domestication of certain animals is not one of the signs of the Civilization Portion of World Governments, so the correct answer is A