Final answer:
The point of comparison when discussing the position of an object is the Reference Point. It is critical for determining displacement, which is the distance and direction from the reference point to the object's position and is a vector quantity.
Step-by-step explanation:
The point of comparison when discussing the position of an object is the d. Reference Point. A reference point is a specific location against which we measure the position of an object. It is crucial in determining the displacement of an object, which is the vector quantity indicating how far and in what direction the object is from the reference point. On the other hand, the distance is a scalar quantity that represents the total length of the path taken by an object, without regard to its direction.
Therefore, while both distance and displacement involve measurements of an object's movement, displacement includes direction and is measured in a straight line from the reference point to the object's final position. When using displacement, it indicates not just the magnitude but also the direction of the distance from the starting point, which is essential for vector analysis in physics.