Which of the following questions are relevant for the study of macroeconomics and which for microeconomics?

a. How will Ms. Martin’s tips change when a large manufacturing plant near the restaurant where she works closes?

b. What will happen to spending by consumers when the economy enters a downturn? 

c. How will the price of oranges change when a late frost damages Ontario’s apple orchards?

d. How will wages at a manufacturing plant change when its workforce is unionized?

e. What will happen to Canadian exports as the dollar becomes less expensive in terms of other currencies?

f. What is the relationship between a nation’s unemployment rate and its inflation rate?