The correct answer is option 4, Tanzania. The Masai tribe is not considered primitive, but rather a traditional tribe that has preserved its customs and way of life for centuries. They are known for their distinctive red attire, elaborate beadwork, and skill in cattle herding. The Masai people live primarily in southern Kenya and northern Tanzania, with a smaller population also found in parts of Uganda. Angola (option 1), Botswana (option 2), and Nigeria (option 3) are not home to the Masai tribe. It is important to note that describing a tribe as "primitive" can be derogatory, as it implies a lack of development or sophistication. It is more accurate to describe traditional tribes as having a different way of life or cultural practices that differ from modern societies.