问题详情

We can learn from the passage that ______.
A．placing video game machine inside amusement centers is not really effective in discouraging youngsters from using them
B．schoolchildren in uniforms are not allowed into amusement centers in many countries
C．people, regardless of their age, are crazy about video games
D．those who are under 15 years old are allowed to use the machine during the day in many countries请帮忙给出正确答案和分析，谢谢！