Answer: The actual correct answer is D. shape. Not dimension.
Explanation: Correct answer on Edge is the 4th option, D. shape. Just like I though it was.
Unfortunately, I couldn't decide between the two so I chose C. dimension because the person above said it was dimension but it was clearly the wrong answer! I would of got 100% on my test if I chose D. But I didn't. :( I know now that I would of been right if I chose D. in the first place. Live & learn!
D. shape is correct.