Why do markets exist?

to help producers dump unwanted products

to give consumers a place to sell their products

to provide the government a place to enforce efficiency

to provide a place for people to trade goods and services

The correct answer is *to provide a place for people to trade goods and services

Explanation:

trading can be simply described as the act of exchanging values between parties.

a market is a place where the sellers and buyers meet and trade, in which the buyers buy what they need and want from the sellers at a price both of them can agree upon.

they work in some type of way

answer (b); /// a method of measuring the opinions of a large group of people by selecting a subset of the larger group, asking them a set of questions and then generalizing those responses;