Concept:In African Traditional Religion, pouring libation is a common way traditionalists communicate with the ancestors and the divine.Explanation:Pouring libation involves offering a drink (like water, wine, or palm wine) on the ground while saying prayers.It is a formal act of prayer and worship among traditionalists.Music, spirit possession, and divination are related practices, but they are not the main means of formal prayer.Answer:C. pouring libation