Susie Is a 5 Year Old in a Spanish Immersion

Susie is a 5 year old in a Spanish immersion kindergarten class.She is joyful and slow to warm up.She is reserved in the first few weeks and her teacher,Ms.Jessica sees that Susie feels unsure of herself at times and has heard her say,"I'm not good at this." She discusses this with her parents at the first conference.They decide to give her time and space while noticing when she does have successes.As a team,the teacher along with her parents are contributing to which one of Susie's emotional developmental milestones?

A) Self-concept.
B) Self-efficacy.
C) Confidence.
D) Self-esteem.