-- Cable telecoms company Liberty Global (NasdaqGS: LBTYA - news ) 's Belgian subsidiary Telenet (Other OTC: TLGHF - news ) to buy mobile network operator Base from Dutch group KPN (notified Aug. 17/deadline Sept. 21)
Take context from the input text and decide on the accurate relationship between 'Liberty Global' and 'Telenet' from the options provided.
Options: stock exchange, subsidiary, publisher, developer