Shawna is persistent when it comes to completing a task. Not only does she refuse to give up when things become a bit challenging, but she believes that as long as she puts forth the effort, she will be able to reach her goals successfully. Albert Bandura might say that Shawna has a high level of

• A. self-esteem.
• B. self-importance.
• C. self-worth.
• D. self-efficacy.