Analyze the relationship between 'Thomson Reuters' and 'Reuters' within the context of the input sentence.
Options: chief executive officer, original broadcaster, subsidiary, business division

Thomson Reuters SEF Garners Certification From LCH.Clearnet’s ForexClear Thomson Reuters SEF Garners Certification From LCH.Clearnet’s ForexClear LCH.Clearnet’s back testing has yielded fluid communication across the entire range of trade lifecycles for Thomson Reuters SEF users.
business division