A Microeconomist - as Opposed to a Macroeconomist - Might

A microeconomist - as opposed to a macroeconomist - might study

A) the effect of borrowing by the federal government on the inflation rate.
B) the effect of rising oil prices on employment in the airline industry.
C) changes in the nation's unemployment rate over short periods of time.
D) alternative policies to promote higher living standards throughout the nation.