What item does Kate always carry with her?

Kate is known for her adventurous spirit and practical skills, which are reflected in the unique item she carries with her: a bucket filled with useful tools. This bucket serves multiple purposes, allowing Kate to be resourceful in various situations, whether it's to solve a problem or assist her friends. The contents of the bucket showcase her preparedness and creativity, qualities that are significant throughout the story. In contrast, the other choices represent items that may be valuable or interesting, but they do not capture Kate's character and her emphasis on practicality and hands-on problem-solving like the bucket does.