The most improved brand is General Motors (NYSE: GM ) ("CEO Mary Barra has made it her goal to ... make sure errors of the past are not forgotten and not repeated"), followed by Target (NYSE: TGT ), travel website Trivago and GM brands Chevrolet and Buick.
Utilize the input text as a context reference, choose the right relationship between 'Mary Barra' and 'General Motors' from the options.
Options: operator, brand, employer, director/manager