The focus has to date been on Fintech with the bank or Reinventure taking stakes in a range of organisations including peer to peer payments business SocietyOne, online payments company PromisePay, bitcoin startup Coinbase and security specialist QuintessenceLabs.
Take context from the input text and decide on the accurate relationship between 'Coinbase' and 'bitcoin' from the options provided.
Options: legal form, industry, employer, headquarters location