Take context from the input text and decide on the accurate relationship between 'Vodafone' and 'Vodafone Hutchison Australia' from the options provided.
Options: brand, owned by, business division, subsidiary

Rob Homer Share on twitter by David Ramli NBN chief executive and former Vodafone Hutchison Australia chief executive Bill Morrow says he cannot recall the details of a case in which Vodafone Australia accessed the phone call and text messages of a Fairfax Media journalist to try to discover her sources.
subsidiary