Which of the Following Statements Best Describes an Important Conclusion

Which of the following statements best describes an important conclusion that arose from the Bobo doll study?

A) Children avoid aggressive behavior whenever possible.
B) Children learn to display aggressive behavior only when they observe that other people are rewarded for doing it.
C) Children learn to display aggressive behavior only when they, themselves, are rewarded for doing it.
D) Children learn to display aggressive behavior when they observe that other people are rewarded for doing it, and when others encounter no consequences at all.