1-C. As the time between childhood and adulthood became longer, psychologists emphasized the importance of "adolescence", a period when individuals are most open to the world and make crucial decisions about their futures.As the time between childhood and adulthood became longer, psychologists emphasized the importance of "adolescence", a period when individuals are most open to the world and make crucial decisions about their futures.
2-C. Thus, the difference between childhood and adulthood was not clear, and children were often treated in the same way as adults.Thus, the difference between childhood and adulthood was not clear, and children were often treated in the same way as adults.