Fan Ceng, a famous painter, talked about his success in the readme, saying: "Painting is usually complicated, and cramps and broken bones are also pitiful. In difficult times, I chase.

Test and analysis: "I am chasing hope and light in difficult times" shows that the growth future of new things is bright, but the road is tortuous. So it is right to choose d, a, b and c, but it has nothing to do with the topic.