题目

阅读下面的材料，从每题所给的A、B、C三个选项中选出最佳答案。 Jackson was driving back home along a road one evening. He just lost his job. It was winter and it was very cold, just like his feelings. An old lady with her car was standing on one side of the road. She needed help. No one stopped to help her. Jackson stopped in front of her and got out of his car. The lady looked very worried. Even when he put a smile on his face, the old lady still looked worried. Was he going to hurt her? He didn't look safe, and he looked poor and hungry. Jackson knew how she fe下列物质能使品红溶液褪色的是 ①活性炭 ②过氧化钠 ③氯水 ④二氧化硫 A．①③④       B．②④       C．①②③④　　　D．①②③④