To accurately compare the motions of objects C and D, we need to establish whether they are moving with different velocities or different accelerations.
If objects C and D have different velocities but the same acceleration, this means they could be moving at different speeds in the same direction (or perhaps in opposite directions) but are experiencing the same change in velocity over time.
If objects C and D have different accelerations but the same velocity, this would imply they are changing their speed differently, but at a certain moment, they are at the same speed.
Without specific information about the velocities and accelerations of objects C and D, I cannot determine which statement is accurate.
That said, if we see two statements that are logically opposite, you would typically choose one of them based on the values of velocity and acceleration provided. If you know the particulars about their respective motions, you would refer to that data to make a decision between the options.
If you can provide details or a specific scenario about objects C and D, I could help clarify which statement is relevant. Otherwise, from the options given, I cannot choose one as the accurate comparison without additional context.