Answer :
Final answer:
Inflation, output growth, and unemployment are major concerns in macroeconomics, while the product mix, which is more related to a business's individual strategy and decisions, is not. Hence the correct option is (all of these).
Explanation:
The major concerns or problems in macroeconomics include inflation, output growth, and unemployment. However, the product mix is not considered a major macroeconomic factor. The product mix is more related to a firm's decision-making in marketing or business strategy and influences microeconomics more than it does macroeconomics, making it the correct answer to your question. Finally, all of these options are correct.
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