The supply curve is a function that represents different combinations of prices and quantities. Those quantities, are the amounts that producers of a certain good or service are willing to manufacture and/or sell at each price level.
It is an upward-sloping function as, according to the law of supply, the higher the market price, the larger the number of units that producers are willing to supply in the market.
Your answers will be "The money supply became less liquid", "Lending and credit stopped", and "It was difficult for banks to receive the loans needed to have cash required to function".
