Juell has played the upright bass in a jazz band several years,so she has confidence in her ability to perform well during the concert this weekend.Regarding music performance,Juell has a high level of __________.

A) self-efficacy
B) life position
C) positive face
D) self-reflexiveness

Self-efficacy refers to an individual's belief in their ability to successfully perform a specific task or skill. Juell's confidence in her ability to perform well in the concert indicates a high level of self-efficacy in music performance. Life position refers to an individual's overall attitude and perspective on life, and is not directly related to music performance. Positive face refers to an individual's desire to be viewed positively by others, and is also not directly related to music performance. Self-reflexiveness refers to an individual's tendency to reflect on and analyze their own thoughts and behaviors, but again is not directly related to music performance.