Utilize the input text as a context reference, choose the right relationship between British Gas and Centrica 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.

Centrica (LSE: CNA.L - news ) was also making gains, despite announcing that British Gas will reduce household gas prices by 5% , cutting annual energy bills by £35 on average.

Answer: owned_by