On November 12, 2014, Twenty-First Century Fox completed the sale of Sky Italia and its 57% interest in Sky Deutschland to British Sky Broadcasting Group plc, which was subsequently renamed Sky plc ("Sky") (See Note 3 - Acquisitions, Disposals and Other Transactions to the accompanying Consolidated Financial Statements of Twenty-First Century Fox).
Take context from the input text and decide on the accurate relationship between 'Sky Deutschland' and 'Sky' from the options provided.
Options: parent organization, stock exchange, publisher, chairperson