Macroeconomics differs from microeconomics in that macroeconomics focuses on:

Macroeconomics differs from microeconomics in that macroeconomics focuses on:
A.prices in specific markets.
B.production in specific markets.
C.individual choices and group behavior in individual markets.
D.the performance of national economies and ways to improve that performance.
正确答案：the performance of national economies and ways to improve that performance.