Which of the following is NOT a source of self-efficacy?

A) Mastering new skills.
B) Vicarious experiences.
C) Encouragement from others.
D) Comparison to others.

Self-efficacy

Someone's conviction in their capability to carry out tasks needed to reach specific achievement levels.

Mastering

The process of gaining comprehensive knowledge or skill in a particular subject or activity.

Vicarious Experiences

Learning or feeling an emotion through the experiences of another person, often through stories, media, or observing others.