In Bandura's Classic Social Learning Experiment, Children Were Most Likely

In Bandura's classic social learning experiment, children were most likely to beat a bobo doll with a mallet when:

A) the bobo doll was rigged to hit them first
B) the experimenter told them to "get aggressive"
C) their parents were not present at the testing site
D) they observed an adult being rewarded for engaging in that behavior
E) they were paid for doing so