Which of the Scenarios Below Represents a Macroeconomic Decision

Which of the scenarios below represents a macroeconomic decision?

A) You are deciding whether to buy a used textbook or rent a textbook for the semester.
B) Your school is making a decision on whether to hire a new professor.
C) The president of Uzbekistan is deciding whether to boost spending on the tourism sector.
D) Marios is making a decision on which university to attend.