Which of the Following Statements About Social Psychology/psychologists Is TRUE

Which of the following statements about social psychology/psychologists is TRUE?

A) Institutional review boards have had little effect on the types of research conducted by social psychologists.
B) Most social psychologists believe they have a moral imperative to study important topics even if doing so poses high risk for the study participants.
C) Social psychology research is devoid of human biases.
D) Strict adherence to scientific methods reduces but do not eliminate human biases in social psychology.