Utilize the input text as a context reference, choose the right relationship between 'Sergio Marchionne' and 'Fiat' from the options.
Options: location of formation, employer, headquarters location, product/material produced

Motley Fool Mobile Fiat Chrysler Gives Up on Merger Talk -- for Now FCA CEO Sergio Marchionne backed away from talk that he is actively pursuing a merger with GM or another automaker.
employer