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.
Refer to the input text as context and select the correct relationship between 'Standard Chartered' and 'London' from the available options.
Options: location of formation, developer, owner of, product/material produced