Which of the Following Is a Situation in Which Deception

Which of the following is a situation in which deception would be considered justified according to the American Psychological Association?

A) A researcher wants to determine if telling people that they are homosexual increases their chances of dropping out of college, so participants are randomly assigned to be told that they are either heterosexual or homosexual based on a personality test and then followed for one year to determine if they quit college.
B) A researcher decides that it will take too much time to describe the true purpose of his study to participants, so he requests the use of deception.
C) A researcher wants to determine if social isolation impacts tendency to donate to charity, so participants are randomly assigned to be left out of an online ball-passing game while being told that the game is just about cooperation.
D) In order to determine if a drug causes seizures, participants are unknowingly given a drug dissolved in juice that they think they are consuming for a taste-comparison task.