Take context from the input text and decide on the accurate relationship between 'Sergio Marchionne' and 'Fiat' from the options provided.
Options: employer, manufacturer, operator, legal form

Mr. Elkann and Fiat Chrysler Chief Executive Sergio Marchionne had approached GM in 2012 and again earlier this year, arguing that steep new technology investments will push the highly fragmented car... To Read the Full Story, Subscribe or Sign In Popular on WSJ
employer