The third (left hand corner) since the x and y are both negative.
<span>electromagnetic.........</span>
Looks like you need to review through the lesson and take notes as it tells you in the lesson what each of these are.
I would say the answer to your question is A Ferris wheel turning at a constant speed. The reasoning behind this answer is the fact that traveling in a constant direction at a constant speed is not accelerating. The Ferris wheel is the only option that fits this description. The last option would be incorrect due to independent causes such as speed limit changes as well as turns and stops on the highway.
Both answers are going to be C
