The existence of a single type of accepted money makes it possible to compare the prices of goods and services .
Option C
Step-by-step explanation:
The existence of a single type of money assist's customers by allowing them having the ability to compare the prices of different brands of the same product, this gives them accessibility to choices, it enables higher purchase rate and it also brings about the savings of consumers or customers currency.
This acceptability encourages the consumers to have an idea of what the product they are about to purchase is priced on and how they can save up to its requirement in other to purchase the goods.
They thus find the product that suits their needs when they find a cheaper product in the store they go to shop for necessities, the better the price and richness of the good, the higher the demand and purchase of then product.