Utilize the input text as a context reference, choose the right relationship between 'Elon Musk' and 'SpaceX' from the options.
Options: currency, member of, subsidiary, owner of

SpaceX Chief Executive Elon Musk last week said a faulty metal brace likely triggered the explosion that destroyed the booster minutes after liftoff from Florida, destroying a load of cargo destined for the space station.
owner of