Barker, Dembo, and Lewin's Classic Study of Children Who Were

Barker, Dembo, and Lewin's classic study of children who were either delayed or not delayed from entering a room full of attractive toys showed that, with regard to aggression:

A) children who were delayed from playing with the toys experienced dissonance and were thus less aggressive than children who were not delayed
B) children who were delayed from playing with the toys experienced frustration and were thus more aggressive than children who were not delayed
C) both groups were equally aggressive, but children who were delayed liked the toys more than children who weren't delayed
D) both groups were equally aggressive, but children who weren't delayed liked the toys more than children who were