What conclusion can you draw about a country of the basis of its gross domestic product

The best conclusion that can be drawn about a country on the basis of its gross domestic product (GDP) is:

A. How many goods and services it produces in a year.

GDP primarily measures the total economic output of a country, reflecting the value of all goods and services produced over a specific period. It does not directly measure purchasing power, quality of life, or life expectancy, although higher GDP may correlate with better outcomes in those areas.