The correct answer is B.
Business have a double role in economy. They are the manufacturers that produce goods and services to satisfy the needs of consumers therefore, as the graph attached shows, they participate both in the factor and product markets:
- On one side, they buy productive factors in the resource markets (land, labor and capital) and they pay for them (salaries, rents and interests respectively).
- On the other side, they produce goods and services to household in the product market, in exchange for a price. This revenue, after cost deduction, would suppose the profit they earn for the manufacturing activity.
To me at least it would be the first answer. if you would like a proper explanation to this let me know :D
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The US role played in the Vietnam War was C. The US became involved because they feared that other countries would fall to communism like dominoes. The Vietnam War was the longest war fought by the US in its history until the War in Afghanistan surpassed it recently. Involvement began slowly at first but gradually ramped up resulting in a widespread feeling of war weariness in the US where activists began to actively oppose war efforts and speak out against involvement on the whole.