Before Participating in an Experiment,the Participants Must Sign a Document

Multiple Choice

Before participating in an experiment,the participants must sign a document affirming that they have been told the basic outlines of the study and are aware of what their participation will involve,what risks the experiment may hold,and the fact that their participation is purely voluntary and they may terminate it at any time.This refers to which ethical principle of research?

A) Informed consent
B) Debriefing
C) Experimental manipulation
D) Significant outcome