What Did the Famous Bo-Bo Doll Study Demonstrate

What did the famous Bo-Bo doll study demonstrate?

A) that children can be classically conditioned to fear even a favourite toy
B) that children are less willing to imitate the actions of someone who is punished for their actions than the actions of someone who is rewarded
C) that girls are more likely to imitate aggressive behaviours than boys are
D) that children are willing to imitate the actions of someone who is punished for these actions