Net worth and stockholders' equity are both equal to the difference between assets and liabilities

Is inflation a macroeconomic or a microeconomic question? Why?

What will be an ideal response?

Which of the following is correct?

a. Real GDP is the variable most commonly used to measure short-run economic fluctuations. These fluctuations can be predicted with a much accuracy. b. Real GDP is the variable most commonly used to measure short-run economic fluctuations. It is almost impossible to predict these fluctuations with much accuracy. c. Nominal GDP is the variable most commonly used to measure short-run economic fluctuations. These fluctuations can be predicted with some accuracy. d. Nominal GDP is the variable most commonly used to measure short-run economic fluctuations. It is almost impossible to predict these fluctuations with much accuracy.