Answer:
Marley removed his bandage to make Scrooge believe on him.
Step-by-step explanation:
'A Christmas Carol' is a novella written by Charles Dickens. The novel is about a visitation paid by an appartition of Ebenezer Scrooge's deceased partner, Marley, to warn him to change his greedy ways or else he will face it's repercussions in the life to come.
When Marley's ghost visited Scrooge, Scrooge did not believe him, so to make him believe the appartition removed it's bandages. The appartition of Marley took off his bandage to make Scrooge believe on him and also to talk to Scrooge.