Reddit Email Print Reprint NEW YORK (TheStreet) --  General Motors ( GM - Get Report ) CEO Mary Barra two weeks ago in Frankfurt presented the latest generation Opel Astra , a car that symbolizes GM's comeback efforts on the continent.
Refer to the input text as context and select the correct relationship between 'Mary Barra' and 'General Motors' from the available options.
Options: employer, brand, chairperson, subsidiary