Entrepreneurs contribute to a market economy by organizing productive resources in order to.. increase prices

prevent competition

create economic activity

hoard productive resources

create economic activity

Explanation:

Entrepreneurs come up with and implement business ideas by organizing some productive resources like land, labor and capital to enable them produce goods and services.

In so doing they are creating economic activity because the business will have to transact with other entities in order to remain viable. For instance, the business will have to employ people, buy goods from other companies and sell to others as well thereby creating business activity in the market.

this is true