In economics, the demand for a good refers to the amount of the good that people:
a. would like to have if the good were free.
b. will buy at various prices.
c. need to achieve a minimum standard of living.
d. will buy at alternative income levels.

b. will buy at various prices.

Explanation:

In economics, demand refers to the quantity of a product that buyers are willing and able to buy at a specific price or different prices. For demand to exist, buyers must not only be willing to purchase but must have the financial resources to buy.

Several factors, such as price, customer preferences, and market news, may influence the demand for a product. As per the law of demand, an indirect relationship exists between price and quantity demanded. An increase in price leads to a decline in demand.  Changes in prices and preferences or related goods also affect the demand for a product.

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due to the changes the federal reserve is making the unused reserves will impact the economy by them facing inflation. inflation is definfed as the increase in pricing of a good or service but the decline of the value of money used for purchasing those items. when the economy has a high inflation rate, they are subject to money loss and hurt on the economy.