Answer:
a. individualism.
Explanation:
Based on the information provided within the question it can be said that in this scenario her attitude best illustrates one of the consequences of individualism. This is a concept that deals with the importance of taking care of one-self and the belief that every individual is unique and self-reliant. Therefore the main importance is distinguishing one-self as uniquely different from every one else.
When you have high self esteem you are more confident you carry yourself taller and seem more happy all around
You are also just more happy in general you feel good about yourself