Refer to the input text as context and select the correct relationship between 'RTL Group' and 'Bertelsmann' from the available options.
Options: creator, currency, parent organization, director/manager

Bertelsmann also holds the majority of broadcaster RTL Group (Other OTC: RGLXF - news ) , which last week lifted its full-year sales forecast after regaining market share in its core German TV business.
parent organization