Final answer:
Hierarchical Scaling is the feature used in art from Benin royal altars to support the concept of sacred kingship. (option C)
Step-by-step explanation:
In art from Benin royal altars, including the altar dedicated to King Ovonramwen, the feature used to support the concept of sacred kingship is Hierarchical Scaling. This artistic technique involves representing figures in a size hierarchy based on their importance or status, emphasizing the king's elevated position in relation to other figures. In the context of Benin royal art, hierarchical scaling visually reinforces the central role of the king as a sacred and powerful figure, contributing to the cultural and symbolic significance of the artwork within the context of sacred kingship.
Hierarchical scaling in Benin royal altar art serves as a visual language, conveying the sacred kingship concept by emphasizing the elevated status of the king through the strategic sizing of figures. This artistic practice enhances the cultural and spiritual narratives embedded in the artworks, contributing to the rich historical and symbolic heritage of Benin art.