Answer:
The relationship between Candy and his dog is extremely similar to that of George and Lennie. Candy's dog is a constant companion, as George and Lennie are for each other. Both the dog and Lennie are helpless and look to their counterpart for care and guidance. Candy and George are both attached to their companions, despite the difficulties involved in caring for them. The dog's death foreshadows the death of Lennie and George's need to carry it out personally.
