题目

My daughter Kelly is a cautious person. She needs to warm up to situations, and is hesitant to try new things. When with close friends, she becomes a leader who laughs loudly and chants, Girls rule, boys drool. But when that comfort zone is not around her, she is shy and nervous.This has been challenging for me at times. “Shy is not a word that I think has ever been used to describe me. But this has been a year of firsts for my girl that has filled her with a new sense of confidence. This year she moved to lap lane in swimming where she was preparing for a swim team. This year she learned to一个工艺品现在售价40元，比原来降低10元， 比原来降低了A．    B．25%    C．20%