The correct answer is letter A. Barley and wheat were both civilizations' main crops. These produce were the main source of food and trade for both civilizations which paved the way for its vast development and major influences in agriculture to the incoming generations.
The current president is Donald Trump. He is the 45th president and started in the year of 2017. He is 73 years old and is of the Republican Party.
B. Primary Election
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The correct answer is that people traced their heredity through their mothers.
In matrilinear societies, the importance of heredity is explained according to the mother or a female relative. For example, if your father comes from one state and the mother comes from another, you are a citizen of the mother's state and will be treated as such even though you might live in another state.