which of the following best illustrates the difference between gdp and gnp? group of answer choices gdp measures the goods consumed by the citizens of a country, while gnp measures output exported to other countries. gdp measures the output produced by the citizens within a country, while gnp measures output produced by noncitizens within a country. gdp measures the output produced by the citizens of a country, while gnp measures output produced within the borders of a country. gdp measures the output produced within the borders of a country, while gnp measures output produced by the citizens of a country.