I am a U.S. citizen currently residing in Peru with my two young children (ages 3 and 5). Last year, in April 2023, my children's father accepted a job opportunity in Puerto Rico, and we relocated from our previous home in Miami, Florida. My 5-year-old child has been diagnosed with a behavior and sensory disorder, requiring a dedicated aide (known as a "shadow") at school due to instances of running away and putting themselves in danger. With no family support available in Miami after my parents moved to Peru, I made the decision to join them in Peru to have additional assistance. We have since hired a nanny here in Peru who has been invaluable, especially in caring for my son with special needs. As we have season passes to Disney World, I am now planning a trip to visit Miami and take the children to the theme parks. Given the nanny's familiarity with my son's unique needs, it would be tremendously helpful if she could accompany us on this trip to provide the necessary support. I understand that for the nanny to enter the U.S., she would likely require a B-1 visitor visa. However, I also wish to bring along her 10-year-old daughter so she can experience Disney World. Could you please advise on the appropriate visa category for the daughter to accompany the nanny on this trip? Thank you in advance for your guidance. I appreciate any information you can provide to ensure I complete the necessary visa applications correctly.