参考答案

正确答案：D
解析：本题考查细节。文中第二段第一句：Torres，who is making history as the oldest swimmer to compete in the Olympics，credits with getting her 41一year-old body in good-enough shape to race athletes half her age．句意为：Torres作为奥运史上参加游泳竞技年纪最大的运动员而载入史册。41岁的她保持良好的体形，与比她年轻一半的运动员同场竞技。据此可知她是一位职业运动员，所以D项符合题意。