What Was One of the Major Impacts of the Yellow

What was one of the major impacts of the Yellow River flooding?

A) The floods provided much-needed water for irrigation, on a regular and easily-managed basis.
B) It caused massive destruction to Chinese crops regularly, with resultant famines.
C) The flooding caused political fragmentation, as the people could not agree on the best method for flood control.
D) It led to the the collapse of the Xia civilization.
E) The Chinese began the development of major flood control projects, including a vast system of levees.