Refer to the input text as context and select the correct relationship between 'Citigroup' and 'insurance' from the available options.
Options: employer, position held, founded by, product/material produced

The “bad-bank” unit of Citigroup Inc., Citi Holdings for more than six years has been the repository for businesses the banking giant wanted to dump: its retail brokerage and life insurance unit, an array of toxic subprime loans, even a stake in a Mexican auto supplier.
product/material produced