Simplify the following text for a Grade 12 native English-speaking person.
Original: The Kongo language , or Kikongo , is the Bantu language spoken by the Bakongo and Bandundu people living in the tropical forests of the Democratic Republic of the Congo , the Republic of the Congo and Angola .
Simplified: Kikongo or Kongo is the Bantu language spoken by the Bakongo and Bandundu people in the tropical forests of the Democratic Republic of the Congo , the Republic of the Congo and Angola .