Under "Yaroslav the Wise" in the 11th century. He build many buildings in Kiev (Kievan Russian) such as Cathedral of Saint Sophia. He also greatly helped to develop the culture and education of Kiev.
The first answer is A. and the second one is D
Indeed it Is C, many elderly people told oral stories that were passed down so they were treated with more respect
I believe it is C. Hope this helps and give me branliest or failure.