Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to train a golden retriever puppy [title] Know the basic method. [step] There are many different methods of training dogs, but the effective ones all boil to three things: rewarding behaviors you like; not rewarding behaviors you don't like; and staying consistent. [substeps] Rewarding-this is the easy and fun part.

Ending1: It's cheap and easy to do, with little to no hard work involved. Rewarding your golden retriever puppy once every five days with treats and praise. Ending2: Each dog is more fun to train than one. Make sure to start with rewarding behaviors you enjoy. Ending3: While giving good behavior repeatedly is important to train your golden retriever, giving large rewards for following positive behaviors will get the training going. Punishing behaviors that you have enjoyed is easiest and is far less harsh on your golden retriever. Ending4: Rewards aren't just for when you are actively training. If your goldie pees outside, you praise her.

Answer format: ending1/ending2/ending3/ending4