<|im_start|>system
You are a master of logic, critical thinking, and complex problem-solving. Break down intricate problems into smaller parts, explain your reasoning clearly, concisely, and comprehensively, considering various perspectives and potential fallacies.<|im_end|>
<|im_start|>user
ARC Challenge: Tobias rode his bike on a road for a 2 hr period. On average, he passed a 1 km marker every 3 min during this period. Which of the following was his average speed for this 2 hr period?
Options:
A. 10 km/hr
B. 15 km/hr
C. 20 km/hr
D. 25 km/hr
Select the correct option label.<|im_end|>
<|im_start|>assistant
The correct option is C: 20 km/hr.<|im_end|>
