The amount of money that the adorable cat Lil Bub has earned for owner Mike Bridavsky has not been disclosed, but it’s enough that Bridavsky quit his day job years ago and has donated $200,000 to animal charities.
In the context of the input sentence, determine the relationship between 'Lil Bub' and 'Mike Bridavsky'.
Options: manufacturer, parent organization, location of formation, owned by