Answer:
the last one, China's political system will prevent further growth of its economic system.
Explanation:

A river valley civilization is an agricultural nation or civilization situated beside and drawing sustenance from a river. A "civilization" means a society with large permanent settlements featuring urban development, social satisfaction, specialization of labor, centralized organization, and written or other formal means of communication. A river gives the inhabitants a reliable source of water for drinking and agriculture. Additional benefits include fishing, fertile soil due to annual flooding, and ease of transportation. The first great civilizations, such as those in Mesopotamia and Ancient Egypt, all grew up in river valleys. Tigris River flourished near Mesopotamia civilization and river nile flourished near civilization of Egypt.
<h2>ꜰᴏʟʟᴏᴡ ᴍᴇ❤</h2>
Answer:
the answer is C. Poverty and disease persist in a sector society.
Explanation:
<span>Federal government respond to the September 11 attacks. The immediate result was the grounding of air traffic in the US. The legal result was the Patriot Act and the establishment of the Department of Homeland Security.So,All air traffic in the US was suspended for two days while new safeguards were designed.</span>
General Horatio Gates (he led the American forces)