What was one of the Roman Empire's most important achievements? O A. Giving women equal rights in society
O B. Freeing all people who had been held in slavery
C. Becoming the first empire to practice polytheism
O D. Designing structures to move water
I will give branliest to the right answer <3 pls dont just do for points thanks :D

Which of the following is not true of the xiongnu empire? burial mounds included glass beads and mirrors made from the sands throughout the region. there was more cooperation through trade between the tribes. other tribal units that were eventually assimilated were indo aryan, xianbei, hunyu, scythina and han chinese. as each nomadic tribe and civilization was conquered or absorbed into the larger empire, the xiongnu were able to hold more territory.