How did the Shang dynasty gain control of the Yellow River valley?

A. They invaded the valley and defeated the former rulers.
B. They befriended the people and became their political leaders.
C. They used irrigation to manage water and gain control over the people.
D. They took over the farms of the people who lived there and forced them to leave.

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How do economists measure the success, or shortcomings, of the economy?

Of the following choices, which ones are characteristics of west african society? select all that apply. a. arabic was the main language used when trading with other societies. b. christianity was the only religion practiced in villages. c. slaves had no rights and were only given specific farming tasks. d. skilled workers were a higher level in the caste system than traders. e. religious rituals encouraged the honoring of ancestors.