Which of the Following Does Macroeconomics NOT Endeavor to Answer

Multiple Choice

Which of the following does macroeconomics NOT endeavor to answer?
i. Why is the typical person in the United States today more than ten times richer than the typical person a century ago?
ii. Why has the unemployment rate been nearly twice as high in Europe as in the United States in recent years?
iii. Why has the price of orange juice risen sharply?

A) ii and iii
B) i only
C) ii only
D) i, ii, and iii
E) iii only