阅读理解。阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。
The practice of swapping fashions has recently been attracting attention worldwide, particularly in Europe and the United States. This is an activity aimed at making more effective use of resources by providing a platform for people to exchange free of charge those fashion items in their closets that they don’t use anymore.
