Which Is a Microeconomic Question, Rather Than a Macroeconomic Question

Which is a microeconomic question, rather than a macroeconomic question?

A) Will a decrease in the income tax rate lift the nation out of a recession?
B) Will an increase in consumer spending cause inflation?
C) Will a decrease in the income tax rate lead to a government budget deficit?
D) Will an increase in the cigarette tax reduce the number of packs sold?