Macroeconomics focuses on economy-wide aggregates, not specific sectors

Steps:

• Recall macroeconomics studies overall economic performance, like GDP, inflation, and unemployment.
• Identify options measuring national aggregates: A tracks total output growth; B measures price changes across the economy; C assesses labor market broadly.
• Spot D as industry-specific output, which falls under microeconomics.
• Confirm D lacks economy-wide scope, making it non-macro.

Why D is correct:

• Macroeconomics analyzes aggregate variables like national GDP; D measures output of one industry, a microeconomic focus on firm/sector level per economic definitions.

Why the others are wrong:

• A: GDP growth is a core macroeconomic indicator of total economic expansion.
• B: CPI inflation reflects economy-wide price levels, a key macro stability measure.
• C: Unemployment rate gauges overall labor market health, central to macro policy.

Final answer: D