The answer would be a) investors purchased the stock with little cash down; if the price dropped the investor had to repay.
Serfs/Peasants would live on the protected land of the lord's manor in exchange for food and goods. The serfs/peasants basically fueled the manor and created self sufficiency, to the point where some lords even forbade Serfs/Peasants to leave their estate.
Hope this helped you
A.ruled by a king or queen
The U.K.'s <span>Prime Minister Theresa May</span>
