Answer:
C) reduce her self-esteem.
Explanation:
Comparison and social-comparison is a typical part of middle-school-aged children. It is at these ages that children develop self-consciousness and self-concept, and start observing people around them as well.
With this, it starts the comparison of us versus them. This kind of thinking can easily reduce or decrease self-esteem - if the child puts too much emphasis on what the others are doing, and starts noticing all the little things that are seemingly wrong or different about themselves, they will become too self-conscious, critical and cynical, and they will develop bad self-esteem.
They will start to see all the good things about others, while comparing it to all bad things they notice about themselves, develop black-and-white thinking, and start having very low confidence.
