Ally Corporate Finance, a unit of the Ally Bank subsidiary of Ally Financial Inc. that provides senior secured commercial-lending products to primarily U.S.-based, middle-market companies, today announced the formation of a team focused exclusively on fueling its expansion into the venture-backed technology sector.
In the context of the input sentence, determine the relationship between 'Ally Financial' and 'Ally Bank'.
Options: owner of, subsidiary, creator, location of formation