Macroeconomics focuses on C) government level.
Macroeconomics is a branch of economics dealing with the performance, structure, behavior, and decision-making of an economy as a whole rather than individual markets.
I would say A.
B would be Carly's age is two years more than three times his sister's age.
C would be Carly's age is two times his sister's age plus three
D would be Carly's age is his sister's age squared plus three.
