Answer:
It appears that you are talking about the Middle Ages so the answer is 'C'. Irrigation goes back to pre-history and the fertile crescent.
Explanation:
It is A. I googled all of them and A is the only one that didn't have stories written about it.
Answer: settlement of the great plains
Explanation:
Answer C. and D.
Converse must pass a proposed amendment by 2/3 majority vote in both the Senate and the house of representatives and send it to the states for ratifications by a vote of the state legislatures.
Answer:
Automatic Voter Registration
Explanation:
This would allow more people to be able to participate in the elections. There would be a much higher turnout which would make for a better government that represents the wishes of the people.