Refer to the input text as context and select the correct relationship between 'British Gas' and 'Centrica' from the available options.
Options: publisher, business division, member of, owned by

The competition watchdog said in March that it had granted permission for British Gas Trading (BGT) - a subsidiary of Centrica (LSE: CNA.L - news ) , the UK's biggest energy supplier - and Northern Powergrid to appeal against Ofgem's price control decision.
owned by