In the first picture, the boy is taking a bath. We take bath in the morning. In the second picture, the girls are playing. We play in the evening. In the third picture, the boy is going to school or he is returning to home from school. We go to school in the morning and return home in the afternoon. Answers can vary. In the fourth picture, the boy is sleeping and dreaming. We sleep at night. So, the correct answer is: