Explanation:

An odometer is a device used to measure the distance traveled by a vehicle. It records the total distance covered, typically displayed in kilometers or miles. This measurement is crucial for monitoring vehicle usage, scheduling maintenance, and determining resale value.

Other Options:

• b) Speedometer: Measures the instantaneous speed of a vehicle, indicating how fast the vehicle is moving at any given moment.
• c) Monometer: This term is not standard in vehicle instrumentation. It might be a typographical error or confusion with "manometer," which is an instrument used to measure pressure.
• d) Anemometer: Measures wind speed and is not related to vehicle instrumentation.

Therefore, the device that records the distance traveled by a vehicle is the odometer.