Since four runners were comparing graphs of their distance over time, C. Runner A, because the graph is the steepest.
Based on the information given, it can be illustrated that the graph for Runner A is the steepest. This shows that the graph for runner A has a sharp inclination.
It should be noted that the fact that the graph of runner A is steep doesn't mean that the runner ran less distance. Also, the graph of Runner D doesn't show that he ran the greatest distance.
In conclusion, the correct option is Runner A, because the graph is the steepest.
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