Utilize the input text as a context reference, choose the right relationship between 'Centrica' and 'energy supply' from the options.
Options: chairperson, creator, parent organization, industry

LONDON - Centrica will cut around 10 percent of its workforce and sell up to 1 billion pounds ($1.56 billion) worth of upstream and wind assets by 2017 as Britain's largest utility looks to focus on energy supply and services.
industry