Post to Facebook GM may export China-made Buick to U.S. General Motors is close to becoming the first major automaker to sell a China-made vehicle in the U.S. in a move that could fuel political consternation over the decline of the American manufacturing sector.
Take context from the input text and decide on the accurate relationship between 'Buick' and 'General Motors' from the options provided.
Options: director/manager, owned by, legal form, parent organization