The Pfister Company, Located in New York, Is a German

The Pfister Company, located in New York, is a German manufacturer of heavy-duty glass shower doors.For example, it uses glass- cutting machinery imported from Germany for its production.The value of the company's output

A) increases both U.S.gross domestic product and gross national product.
B) increases U.S.gross domestic product and decreases U.S.gross national product.
C) U.S.gross domestic product but U.S.gross national product is not affected.
D) increases U.S.gross national product but U.S.gross domestic product is not affected.