What is the relationship between 'Vodafone' and 'Vodafone Hutchison Australia' in the context of the input sentence.
Options: brand, subsidiary, owned by, business division

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