T-Mobile US CEO John Legere says Verizon Communications' (NYSE:VZ) Go90 mobile video service could be a "debacle," and that cable TV firms such as Comcast (NASDAQ:CMCSA) might need to buy a wireless phone company to stay competitive.
Take context from the input text and decide on the accurate relationship between 'Go90' and 'Verizon' from the options provided.
Options: owned by, director/manager, business division, manufacturer