Speed is the ratio of the distance an object moves from a reference point to a the amount of time it takes to travel the distance b the direction the object moves c the displacement of the object d the motion of the object

The correct option is A.

Speed is the ratio of the distance an object moves from a reference point to  the amount of time it takes to travel the distance.

For a fixed distance, if the time required to travel the distance is less than the speed is high. However, if time to cover the same amount of distance is more than the speed is low. Therefore, the measurement of speed distance and time has an inverse relationship.

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