PART A: Which statement best expresses the central idea of the text?

A
Most people are kind towards others without realizing they are actually being selfish, as they expect something in return.
B
People are only ever truly kind when they do something good for someone else without receiving anything in return.
C
The brain recognizes acts of kindness as rewarding because positive social interacts are an important part of human survival.
D
Showing kindness towards others can improve your mood through positive social interactions and reinforcing the notion that you’re a good person.