Step-by-step explanation:
Candy's dog provides his owner with the same kind of friendship and security. Even though the animal cannot respond, as Lennie can to George, it has the same attachment to Candy and gives him the comfort that he at least has something that the other ranch hands lack
Candy always took care of his dog like George takes care of Lennie. He tried to save his dog from being shot like George saved Lennie from drowning