Nomads had a great impact on the Song dynasty, threatening borders and then
conquering
China in the 1120s, founding the Jin Empire, while the Song
dynasty continued to rule China for another 150 years.

d. direct

answer: the risk-return relationship. generally, the higher the potential return of an investment, the higher the risk. there is no guarantee that you will actually get a higher return by accepting more risk. diversification enables you to reduce the risk of your portfolio without sacrificing potential returns.

explanation:

us court of appeals for the 11th circuit