The Gross Domestic Product (GDP) of a Country Is the Value

The gross domestic product (GDP) of a country is the value of:

A) output generated by factors of production owned by the citizens of a country, no matter where the production takes place.
B) output produced within a country's borders, regardless of who owns the factors of production used in the production and receives their returns.
C) consumption by domestic consumers.
D) output produced by domestic firms located within the country's borders.