The answer to your question is number 4
The answer that best applies to both the Tang and Song dynasties would be C. A Reliable food production and distribution system. This gave both dynasties the ability to thrive.
Answer
The blues music resides in the element of African-Americans creating their own aesthetic. Blues music represents the opposing voice that refused to be silenced by oppression and segregation.
Hope this helped!
A. Natural disasters, such as tsunamis, earthquakes, and floods
hope this helps
This has resulted from the heterogeneous mix of the countries that are actually participated in. The Iraq and Iran were a member of this organization. There are a lot of concerns regarding the ideology, over the security of the borders, and even the internal security they were bothered by that.