Which of the Following Is Not an Ethical Guideline, According

Which of the following is not an ethical guideline, according to the APA?

A) Scientists should not create a situation in which the intensity of participants' emotions surpasses those they typically experience in daily life
B) Emotions should be induced in the lab by experiences that are likely to be encountered in everyday life, rather than by very unusual interventions
C) Emotions should be extinguishable and alleviated before the participant leaves
D) Scientists should never deceive or mislead subjects in any way; participants should always know the full purpose of the experiment
E) All of the above are ethical guidelines