Here is what I came up with for this Inference question.
1. The same task triggers (causes) different levels of environmental awareness.
2. Math causes most people to increase environmental awareness.
3. Some people visualize and show a decrease in environmental awareness.
4. Other people could see this environmental awareness increase because of a signaling of a rest.
(A) Right off the bat, we get line 3 of the stimulus. Some people who do math puzzles (maybe logic games???) actually show a decrease in environmental awareness, so this would line up that they wouldn't show an increase.
(B) People who visualize answers are not necessarily aware of their surroundings. It actually says they show a decrease in environmental awareness in line 3.
(C) There really isn't anything in the stimulus about people being aware of their surroundings in math vs. non-math problems.
(D) I think this one is an extreme answer. We may see an increase in environmental awareness because of the signaling of rest, but not only during this period. Also, line 4 is talking about non-visualizers.
(E) This is too broad and we cannot infer this. Math problems don't require frequent rest. The signaling of rest just explains the non-visualizers!
Let me know if I missed anything.