how does the existence of a single type of accepted money help consumers?

a. It makes it possible to make large purchases.
b. It makes it easy to make a profit on savings accounts.
c. It makes it easy to compare the price of goods and services.
d. It makes it possible for producers to adjust prices down for sales.

c. It makes it easy to compare the price of goods and services.

Having a single type of accepted money makes it easier for consumers to quickly and easily compare prices of goods and services. This allows consumers to make informed decisions and choose the best option for their needs and budget. It also creates a standardized system of value, making transactions more efficient and transparent.