Explanation
Macroeconomics is defined as the branch of economics which studies economic problems at the aggregate level of the economy, i.e, considering the whole economy. It focuses on aggregate measures such as aggregate demand, aggregate supply, and aggregate price level.On the other hand, microeconomics deals with the study of economics from the viewpoint of an individual unit. It focuses on individual measures such as consumption of a household, the price level of a firm, and the savings of an individual.Hence, D is the correct option.
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