46. In her daily workout, Anna runs at a constant rate of 8 miles per hour and walks at a constant rate of 4 miles per hour. Today, she ran for 10 minutes, walked for 5 minutes, ran for 10 minutes, stopped to rest for 5 minutes, and then ran for 5 minutes. In the following graphs, the horizontal axis represents the elapsed time since the beginning of Anna's workout and the vertical axis represents the distance Anna covered. Which graph best represents Anna's workout for today?

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