Chandra belongs to a sorority that is full of intelligent, hard-working, and attractive women. Based on her evaluation of herself relative to her sorority sisters, she considers herself to be about average. Chandra is using in her evaluation of herself.

Social comparison

Explanation:

Social comparison  is defined as the state in which a person tends to compare their personal behavior,traits or life with other people such as peer group, friends, etc.They compare social worth of own with others so that they can improve themselves or achieve the same thing as others have.

According to the question, Chandra is performing social comparison through comparing herself with sorority women in terms of intelligence, looks and hard work.

social comparison    

Explanation:

Social comparison -

It refers to the process of comparison between two or more individual living in the society , is referred to as social comparison .

The comparison can be on various factors like looks , behavior intelligence etc.

In most of the cases the process of social comparison marks a negative effect on the inferior person .

Hence , from the given scenario of the question ,

The correct answer is social comparison .

answer; i do believe its (b) 12.5 years of age;