Based on the excerpt, President Jimmy Carter made reference to the meeting he had with various leaders on the energy crisis.
<h3>What is a state crisis?</h3>
A state crisis can be defined as any form of event that has the potential of causing an unstable and dangerous situation across a country, thereby, adversely affecting the people that are living within it.
In this scenario, the United States of America had an energy crisis while Jimmy Carter was the president. Thus, President Jimmy Carter gave a speech on the 15th of July, 1979 to address the citizens of the United States of America on their energy crisis through a live TV broadcast.
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The Yellow River in the north and the Yangtze (or Yangzi) River in the south are the sources of much of the water that flows through the piedmont and across the coastal plain.
China proper is traversed by these two rivers. In actuality, these two rivers' drainage basins make up the majority of China Proper. Both come from the Tibetan plateau's extreme west. The Xi River, which flows through southern China, is substantially smaller.
The fall line or fall zone marks the separation between a coastal plain and the Piedmont. Rivers flow along this from the older, tougher Piedmont rocks to the softer coastal rocks of the plain region.
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Answer:
I would say layer c and d that makes more sense to choose