Another answer lies in shifting investor expectations of market shocks, five years after the U.S. "flash crash" that briefly wiped out nearly $1 trillion in market value and seven years after the subprime crisis pushed investment bank Lehman Brothers into bankruptcy and redrew the financial landscape.
Analyze the relationship between 'Lehman Brothers' and 'investment' within the context of the input sentence.
Options: owner of, industry, brand, founded by