Which of the Following Is True of Laboratory Research in Social

Which of the following is true of laboratory research in social psychology?

A) It is possible to achieve greater experimental control in laboratory research compared to field research.
B) Generality of results is less of an issue in laboratory research than for field research.
C) It is never necessary to use deception to conceal the goals of laboratory research into social behavior.
D) Demand effects are less of an issue in laboratory research than in field research.