In ancient times<em> China</em> was isolated because of the mountains and rivers, they had the Himalayas and the Gobi, as good barriers. They believed that were alone in the world. Living in isolation made difficult to govern there, because of the large areas they had. This made people lived in different parts of China, create their own culture and costumes too, dialects, and way of speaking.
Answer: A) Pruning
Explanation: Pruning in the view of neuroscientist is a process that occur through out a person's life span but more active between childhood and adulthood and slows down afterwards; it involves the reduction of synapses and neurons in the brain. It is a way of eliminating neural pathways in the brain that are no longer in use. As a child learn new things, the brain develops and become more mature, some neural connections develop and become more useful while others are no longer useful, pruning helps in removing these pathways that are no longer in use.
