​Leo Works in a Mercedes Benz Factory in Alabama

Multiple Choice

​Leo works in a Mercedes Benz factory in Alabama. He is then transferred to Mercedes's plant in South Africa. When does the value of Leo's work for Mercedes contribute to U.S. GDP?

A) The value of his work does not contribute to U.S. GDP, since Mercedes Benz is a German company.
B) ​The value of his work always contributes to U.S. GDP because Leo is a U.S. citizen.
C) ​The value of his work contributes to U.S. GDP when he works in the Alabama plant.
D) ​The value of his work contributes to U.S. GDP only for Mercedes Benz vehicles sold in the U.S. market.