Please choose the correct ending to complete the given sentence: Youth: [header] How to get along with your sister [title] Support your sister's achievements. [step] If you want a good relationship with your sister, make her feel supported. Instead of becoming jealous over your sister's achievements, be her personal cheerleader.

Ending1: Show her how great she is by always trying your best. [title] Know when it's time to talk. Ending2: Help her celebrate the new trends in her life by telling her about what you think of her when you see her test the cool advanced week of her next year. Be genuine in your remarks and compliments, and your sister will be impressed by them. Ending3: When your sister achieves something, avoid judging her as she might criticize you. Let her see that no one compares to her. Ending4: This will make your sister feel valued and strengthen your bond. [substeps] If your sister achieves something, offer her a sincere congratulations.

Answer format: ending1/ending2/ending3/ending4