Answer:
self-concept; working self-concepts
Explanation:
Self-concept can be described or explained as an individual perception of one self or behavior. This can be explained further as the mental picture that one has about himself/herself.
Some examples of self-concept are , when an individual sees himself/herself as an intelligent person, and when a man/woman sees himself/herself as a good spouse.
In this case, Sarah is showing an act which is termed as self-concept because she was showing the mental picture of herself, but in a working manner.