Fidelity National Information Services Inc. agreed to buy SunGard for $5.1 billion in cash and stock, a decade after a group of private-equity firms acquired the financial software company in one of the signature deals of the buyout boom that preceded the financial crisis.
Utilize the input text as a context reference, choose the right relationship between 'SunGard' and 'software' from the options.
Options: product/material produced, chief executive officer, currency, employer