Question

in a free - enterprise system, consumers decide

how to set prices.

which goods to export.

which services to buy.

how to use materials.

Explanation:

In a free-enterprise system, consumers exercise sovereignty by choosing which goods and services to purchase based on their preferences and ability to pay. Price setting is typically done by producers, export decisions are made by businesses/government, and material usage is controlled by producers.

Answer:

○ which services to buy.