What is the relationship between 'Bharti Airtel' and 'Vodafone' in the context of the input sentence.
Options: owned by, founded by, original broadcaster, developer

As per India Ratings and Research (Ind-Ra), with these new norms, the industry could see emergence of four pan-India players — Bharti Airtel , Vodafone India, Idea Cellular and Reliance Jio Infocomm — while others may exit.
owned by