He was known for changing the banking system of America, from a centralized banking system of the Bank of the United States where federal money was stored and kept. It became a decentralized banking system. I hope this answered your question.
The correct answer is option C) "The plague killed many peasants who worked the land, so the ruling classes did not have as many farmers to work their lands". The bubonic plague was a devastating global epidemic that affected Asia and Europe. The feudal system was affected in medieval Europe since many farmers died victims of the plague, which resulted in a reduced number of peasants to work them.
The term best to use it Emigrate. The act of moving and living in a new country.