Which One of the Following Instances of Learning Can Be

Which one of the following instances of learning can be explained more easily by social cognitive theory than by behaviorist views of learning?

A) Playing the role of a German soldier in the school play, Andy says his lines using a German accent similar to one he's heard in the movies a few times.
B) Brad discovers that to get his teacher's approval, he must turn in his writing assignments without a single error in grammar, spelling, or punctuation.
C) Craig finds that he gets one "special" girl's attention when he shows off on the playground.
D) Darren has stopped trying in school, because he seems to get low grades no matter what he does.