The study of microeconomics and macroeconomics differ in that:

a. microeconomics is concerned with the domestic economy and macroeconomics is concerned only with the international economy.
b. microeconomics examines the individual markets of the economy while macroeconomics studies the whole economy.
c. microeconomics studies the actions of households and macroeconomics studies the actions of business firms.
d. microeconomics examines the whole economy while macroeconomics studies the individual units of the economy.

b