Merely explains that without their council Scrooge may expect the same fate as he was suffering - everlasting torment.
Humbug
The ghosts are the ghosts of Christmas Past, Present, and Future
Marley appeared to Scrooge and warned him about changing his behavior. Marley also told Scrooge he would be visited by three ghosts.
All the spirits teach scrooge a lesson
Visitors has three syllables.
The two "visitors" refer to the two business men who approach Scrooge asking for a charitable donation to help the poor and needy "at this time". Scrooge asks "are there no work houses?", are there no prisons?" And the treadmill is that still in use?" . All of which he thought that the poor should suffer because they were poor.
Huey, Dewey, and Louie Duck were the three nephews of Uncle Scrooge.
At the beginning of Act Three, Scrooge receives a visit from the Charitable Gentleman seeking donations for the poor, followed by two portly gentlemen collecting for charity.
Three ghosts
Scrooge, Scrooge's nephew,The three ghosts, and possibly Bob Cratchit.
In total the three Ghosts (plus Marley) visited Scrooge all in one night