Final answer:
Velocity is calculated by dividing displacement by time, and speed is calculated by dividing total distance traveled by time. Since the question lacks time information, we cannot accurately determine the velocity or speed. Therefore, none of the options provided can be evaluated as correct without more information.
Step-by-step explanation:
To determine velocity and speed from the given displacement and distance traveled, we need additional information about the time taken for the motion. However, we can discuss the concepts and relate them to the provided information. Velocity is a vector quantity, which means it has both magnitude and direction. It is calculated by dividing the displacement by the time taken for the motion. Given that no time is offered in the question, we cannot calculate the velocity accurately. Similarly, speed is a scalar quantity and is determined by dividing the total distance traveled by the time taken. As we don't have time information, we also cannot determine the speed from the data provided.
In a scenario where a person travels and returns to the starting point, like the example of driving to a store and coming back, the average velocity is zero because the displacement is zero. However, the average speed is not zero because it is based on the total distance traveled, which in this case would be the distance to the store and back.
Without the time component, the given options a, b, c, and d cannot be evaluated as correct or incorrect for the question as stated.