Question: Which ethnic group which Tonga people of Zambia and Zimbabwe belong inhabit a geographical area stretching east and southward from Central Africa across the African Great Lakes region down to Southern Africa?
Sentence (from "East African Community"): The East African Community (EAC) is an intergovernmental organisation composed of six countries in the African Great Lakes region in eastern Africa: Burundi, Kenya, Rwanda, South Sudan, Tanzania, and Uganda.
Relevant evidence: No