Answer:
The correct answers are:
A) The effect of federal government spending on the national unemployment rate . (Macroeconomics)
B) The effect of government regulation on a monopolist's production decisions. (Macroeconomics)
C) The effects of the Internet on the pricing of used cars. (Microeconomics)
Explanation:
Macroeconomics is the branch of economy in charge of studying the interaction between individuals and region, country and overall economy surrounding them. Microeconomics, on the other hand, is in charge of analyzing individuals' decisions and how those decisions affect their economy. Thus:
A) The effect of federal government spending on the national unemployment rate . (Macroeconomics)
B) The effect of government regulation on a monopolist's production decisions. (Macroeconomics)
C) The effects of the Internet on the pricing of used cars. (Microeconomics)