Wrong, Manny Pacquiao is not anymore under Bob Arum promotion, he has his own promotion so his camp will only decide if they will accept this challenge.
I was not aware of that, i was still thinking that Bob Arum is still the promoter and if that is the case then the only person who needs to approve the fight is Dana White and if Conor McGregor is really interested to fight Manny Pacquiao then i am sure he will allow that to happen as Dana White is also a boxing promoter and he will be looking for big fights to make the official announcement.