Chrysler executive Scott Garberding said in court on Tuesday that Chrysler had explored tie-up deals with Nissan and General Motors prior to the current proposed deal with Fiat, but they fell apart as the U.S. economy worsened.
Take context from the input text and decide on the accurate relationship between 'Chrysler executive' and 'Chrysler' from the options provided.
Options: chief executive officer, brand, manufacturer, owner of