, Children Were Shown Aggressive Television Programs and Then Later

, children were shown aggressive television programs and then later asked to play a game in which they had to push a button to either help or physically hurt a child in another room who was also playing the game. Although there really was no other child in the next room and no children were physically harmed, this study could be considered to be unethical because

A) the children's parents had not given informed consent.
B) the children were not compensated for participation.
C) the use of deception could have resulted in psychological harm after the children completed the study.
D) the children's responses were not kept confidential.