Answer:
c
Step-by-step explanation:
The Khoi, San, Ndebele, and Xhosa are all ethnic groups indigenous to Sub-Saharan Africa. The Khoi are sometimes referred to as Khoi-Khoi (and by some older sources as "Hottentots"). The Xhosa are located mainly in southeast South Africa. Nelson Mandela and Archbishop Desmond Tutu are two very famous Xhosa people.