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.
Analyze the relationship between 'Citigroup' and 'insurance' within the context of the input sentence.
Options: founded by, employer, product/material produced, position held