Marcus Is Considering Trying Out for the Third Base Position

Marcus is considering trying out for the third base position on his college's baseball team. After watching the team's regular third baseman at practice, he changes his mind. In the language of social learning theory, Marcus's decision was based on his

A) ability to learn vicariously.
B) ability to modify his behaviour and thinking through observational learning.
C) locus of control.
D) self-efficacy.
E) none of the above