miguel tries to concentrate during a class lecture, but he can't get his mind off a personal problem. his preoccupation with his personal problem is an example of noise.

 This is an example of "Psychological noise".

Psychological noise refers to any distraction which is caused by a personal issue someone is experiencing, for example in the given case Miguel is having a personal problem, and this noise causes the information to get blockages from sender to receiver. There are other kind of noises excluding psychological noise like semantic noise and physiological noise.

sumerians were polytheistic, meaning they believed in many different gods. so, the best answer is c.