Mandy Jackson was reflecting on the problem of Francisco. He was in her third period English class, and he was failing. She had tried gentle reminders to him to complete his work and made sure she recognized him when he did so; she had tried simplifying directions; she had tried counseling him; she had tried drawing him out in class and elaborating on his comments and questions. "So far, none of those has really worked for very long", she mused, "I know I can get him to learn. I wonder what I should try next. I think I'll call his parents and ask for their help." Which of the following statements best describes Mandy's behavior in the episode you just read?
a. She has demonstrated high teaching efficacy.
b. She has demonstrated a commitment to ethnic diversity.
c. She has demonstrated modeling and vicarious learning.
d. She has demonstrated effective organizational skills.