Utilize the input text as a context reference, choose the right relationship between Buick and General Motors from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

General Motors also plans to shift the production of most other Buick models, except the mid-sized LaCrosse sedan and the large Enclave crossover, to China or Europe soon (read more: General Motors to Sell China-made Buicks in US).

Answer: parent_organization