Please choose the correct ending to complete the given sentence: Youth: [header] How to convince your parents to buy you a second dog [title] Earn credit by caring for your current dog. [step] How you behave up to the point of asking can affect whether or not your parents say " yes. " try to earn credit by caring for the dog you have now.

Ending1: [substeps] To ensure you earn credit for your current dog, treat it as a fixture in your house, such as a prized product or trait you admire. If you see your parents using a dog instead of choosing someone else, you might try bringing it to their home. Ending2: [substeps] Consider taking on extra responsibility by calling your relatives and asking to mentor one of their dogs for the rest of your life. Make sure you give equal credit to people in your household. Ending3: This will show your parents you're responsible enough to care for a new pet. [substeps] Step up and take on more responsibility in terms of caring for your current dog. Ending4: Pay attention to your parents' needs and your own to see how you can motivate them to buy you a second dog. [substeps] Your parents might not be as worried about credit as they are about the quality of the first dog they purchase.

Answer format: ending1/ending2/ending3/ending4