Utilize the input text as a context reference, choose the right relationship between 'Lehman Brothers' and 'investment' from the options.
Options: industry, parent organization, manufacturer, original broadcaster

In 2009, a year after the collapse of investment bank Lehman Brothers and with the economy already in the depths of an historic, deep recession, economists were predicting the Fed would hike rates as early as the first quarter of 2010.
industry