The survey result comes despite Europe's biggest bank HSBC and its Asia-focused rival Standard Chartered currently deciding whether to axe their London headquarters because of a government levy on bank profits and the uncertain outcome of an upcoming vote on Britain's membership of the European Union.
Utilize the input text as a context reference, choose the right relationship between 'Standard Chartered' and 'London' from the options.
Options: location of formation, owner of, developer, product/material produced