Answer:
b. creating barriers to the outside world.
Explanation:
The physical geography of China affected the development of Chinese civilization. This is mainly due to the fact that China has several natural barriers to the outside world. On the one hand, a large portion of the country's territory is surrounded by ocean. On the other hand, the west and north of the country display sunken basins and towering massifs. Moreover, the Tibetan Plateau also represents a difficult boundary to overcome.
<em>On August 14th, 1935, the Social Security Act established a system of old-age benefits for workers, benefits for victims of industrial accidents, unemployment insurance, aid for dependent mothers and children, the blind, and the physically handicapped.</em>
<span>The railroads had to pass through mountains and rivers.</span>
Christianity he and his father were both baptized by the Portuguese Priests. He is sometimes called "The Apostle of Kongo" for his role in making Kongo a Christian kingdom