A. The reform of its legal system. B. The reform of its transportation system. C. The reform of its economic system. D. The reform of its political system. 参考答案:A 答案解析:[解析]事实细节题。文章第五段提到了沙特阿拉伯需要进行教育改革和法律改革,这样才能走出贫穷,因此A)项“法律体制改革”正确。文中没有提到B)项“交通体制改革”、C)项“经济制度改革”和D)项“政治制度