All vehicles on the road A. create the same amount of pollution.
B. have On-Board Diagnostic systems.
C. are required to be tested for fuel efficiency.
D. require safety chains when driving.
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All vehicles on the road A. create the same amount of pollution.
B. have On-Board Diagnostic systems.
C. are required to be tested for fuel efficiency.
D. require safety chains when driving.
The correct answer is B. have On-Board Diagnostic systems.
Explanation: Most modern vehicles are equipped with On-Board Diagnostic (OBD) systems that monitor their performance, emissions, and various mechanical functions. These systems help identify issues and ensure vehicles comply with environmental regulations. The other options are not universally true for all vehicles. For instance, not all vehicles create the same amount of pollution (A), not all are required to be tested for fuel efficiency (C), and safety chains are typically not required for all types of vehicles (D).
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