Utilize the input text as a context reference, choose the right relationship between 'Ruth Porat' and 'Chief Financial Officer' from the options.
Options: position held, industry, manufacturer, distribution format

The arrival of new Chief Financial Officer Ruth Porat in May has assuaged investor concerns that Google boss Larry Page's spending on projects outside the main search-advertising business -- from driverless cars to computerised spectacles -- would keep accelerating without paying off in higher revenue.
position held