Final answer:
The Golden Stool and the Twi language are associated with the Ashanti ethnic group, indicating the sacred importance of the stool in their culture.
Step-by-step explanation:
The information provided describes the Ashanti ethnic group. The Golden Stool is highly revered within the Ashanti culture as the throne of the ruler and the ultimate symbol of power in Asante society. According to legend, it descended from the sky and represents the spirit of the Asante people - the living, the dead, and the unborn. The Twi language is spoken among the Ashanti people, which confirms that the Golden Stool is connected to this particular ethnic group. This sacred stool is so integral to their society that it never touches the ground, is only handled by the ruler himself, and is even seated on its own throne during solemn occasions.