No, Clare is not running at a constant rate because she gets slower as she runs more laps. Option B
To determine if Clare is running at a constant pace, let's analyze her lap times.
If Clare is running at a constant pace, the time for each lap should remain consistent. Let's assume her lap times at the end of laps 2, 4, 6, 8, and 10 are as follows:
Lap 2: 10 minutes
Lap 4: 20 minutes
Lap 6: 30 minutes
Lap 8: 40 minutes
Lap 10: 50 minutes
From the recorded times, it's evident that Clare's lap times are increasing by 10 minutes with each subsequent lap.
Thus, Clare is not running at a constant pace.