I think the answer would be a
Scientists best apply through critical thinking in their work through.....
a.
the scientific method
<span> President Reagan
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Answer:
<em>D. All of the above</em>
Explanation:
The emphasis in macroeconomics is on the demand and supply for all economically generated goods and services.
The <em>aggregate demand curve shows the total amount at different price points of all goods (and services) consumed by the economy. </em>
The vertical axis shows the rate of costs for all final goods and services.
The horizontal axis reflects the actual amount of all purchased goods and services as calculated by the real GDP level.
