Which of the Following Is a Reason for a Decrease

Multiple Choice

Which of the following is a reason for a decrease in the use of elaborate deception in research studies?

A) The use of deception is an expensive and time-consuming method to employ.
B) There is a decrease in the general awareness of the ethical issues regarding deception.
C) The ethics review board approves more researches using deception methods.
D) More researchers have become interested in cognitive variables rather than emotions.