Utilize the input text as a context reference, choose the right relationship between Wesfarmers and conglomerate 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.

Diversified conglomerate Wesfarmers operates Coles supermarkets, and businesses including office supplies, home improvement, insurance, resources, chemicals, energy and fertilisers.

Answer: industry