Final answer:
The prefix 'macro' in macroeconomics does mean 'large', which is congruent with its focus on large-scale economic issues and goals.
Step-by-step explanation:
The prefix 'macro' in the term macroeconomics indeed signifies 'large' or 'overall'. True to its Greek origin, it represents an approach to economics that looks at the broad perspective of economic activity and policies. Macro from the word macroeconomics means large, confirming that statement 'a' is true. Macroeconomics encompasses the study of economic growth, inflation, and overall economic health of a nation or region. It addresses how consumer and business activities impact the large-scale economy, rather than focusing on individual markets or sectors as in microeconomics.