Two runners, Alice and Bob, compete in a marathon. Alice starts at a moderate, consistent pace and maintains it throughout the race. Bob, a sprinter, starts very fast, then experiences extreme fatigue and rests for a period, before regaining strength and finishing the race. Alice, despite Bob's initial speed, manages to finish the race before Bob. Which of the following graphs best illustrates the distance covered by Alice and Bob over time ?
A. 
B. 
C. 
D. 
E. 
Graph A
Graph B
Graph C
Graph D
Graph E
