Final answer:
Handcuffs is not a common restraint method for dogs.
Step-by-step explanation:
Of the options given, handcuffs is not a common restraint method for dogs. Handcuffs are not designed or recommended for use on dogs and can cause harm or injury.
Common restraint methods for dogs include a muzzle, which is used to prevent biting or to protect someone from being bitten; a leash, which is used to control the dog's movements and prevent it from running off; and a catchpole, which is a long pole with a loop at the end used to safely restrain a dog by placing the loop around its neck or body.