The correct answer is A. Jeremy
Explanation
The graph represents the speed at which Kevin walks with a speed of 23 miles every two hours, that is, in one hour Kevin travels 11.5 miles since he walks at a constant speed. On the other hand, Jeremy walks at a constant speed of 15 miles per hour, so Jeremy in two hours travels 30 miles. In four hours Jeremy travels 60 miles while Kevin travels 46 miles.
So the correct answer is A. Jeremy.
