Select the pair that best expresses a relationship similar to that expressed in the original pair:
CHRONOMETER : TIME
Correct: A
A CHRONOMETER is an instrument used to measure TIME with extreme accuracy. The relationship is 'instrument to measured quantity'. Similarly, a BAROMETER is an instrument used to measure ATMOSPHERIC PRESSURE. A thermometer measures temperature, not heat. An odometer measures distance, not speed. A radiator controls temperature, but doesn't primarily measure it.