At the "Meet Your Teacher" Day Before the School Year

At the "Meet Your Teacher" day before the school year started, Harish met Ms. Keppel. She asked, "So Harish, tell me something about you." He responded, "I was the best in my class last year, and picked for the All-Star Regional Soccer Team. I can accomplish anything I want to do." Harish is revealing his:

A) self-concept.
B) self-control.
C) self-efficacy.
D) self-esteem.