Utilize the input text as a context reference, choose the right relationship between Volkswagen Group and Volkswagen 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.

Meanwhile, Volkswagen remains under intense scrutiny in the United States, where Michael Horn, president and chief executive of Volkswagen Group of America, will testify before a congressional oversight panel about the scandal on Oct. 8.

Answer: business_division