Because it makes them feel better about their own life
Answer:
I understand your point completely, but Brainly only wants you to pay for their stuff because this is a free company for us, however, not for them. They have to pay for their company. Sounds silly, right? Still having to pay money for a free company? Unfortunately, it just has to be that way.
D. political viewpoint is your answer. Hope I helped!
C is the reasonable answer.