고2수능모의고사(2010년 3월) 18. 밑줄 친 this가 가리키는 것으로 가장 적절한 것은? The public's fear of this is a major concern for policy makers. They have constantly tried to drop the rate of this. They have construcetd news prisons and put more people into them. However, it created more problems than it solved, as prisons are responsible for breeding more of this. We ..