Utilize the input text as a context reference, choose the right relationship between restrictions and music streaming 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.

The regulators are also seeking information from Spotify and other music streaming services on the restrictions Apple places on apps offered through the store, Re/code said, citing people familiar with the situation.

Answer: distribution_format