Respuesta :

The best and most correct answer among the choices provided by your question is the fourth choice.

The information describes the train's SPEED.

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Answer:

Speed

Explanation:

The information "100 miles per hour" describes that the train travels 100 miles of distance in a time period of 1 hour. we know that the speed is defined as the distance traveled by an object in unit interval of time with no information about the direction of motion. hence the information "100 miles per hour" about the express train describes the speed of the train.