Cost of goods is your answer
They closed their borders and turned inward because they wanted to stop people from learning other religions. Two results are that they could no longer trade and they were confined to themselves.
T∅P
Answer:
The increase in agricultural production and technological advancements during the Agricultural Revolution contributed to unprecedented population growth and new agricultural practices, triggering such phenomena as rural-to-urban migration, development of a coherent and loosely regulated agricultural market,
Explanation: