Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to care for doberman pincshers [title] Decide whether you like the temperament of a doberman. [step] The american kennel club (akc) describes the temperament of the doberman as energetic, determined, watchful, loyal, and fearless. This goes some way to describe the alert intelligence of the doberman.

Ending1: When channeled correctly through good training, their energy and willfulness make them a potent working dog and a great pet. [title] Understand the need for thorough and consistent training with a doberman. Ending2: This dog is quite smart, and is capable of making a team. [substeps] To protect a doberman from predators, you should avoid animals that may bite your dog. Ending3: He is energetic and intelligent, and knows his way around the world. [substeps] This breed is the best for houseguarding and takes pride in being the strongest doberman. Ending4: If you like the alert intelligence, your puppy should be spayed or neutered. If you don't, then you will probably not be able to take the puppy outside for a treat.

Answer format: ending1/ending2/ending3/ending4