According to the Requirements of "Informed Consent," Research Participants in a Blind

According to the requirements of "informed consent," research participants in a blind, placebo-controlled study will be told

A) that they may or may not receive an active treatment.
B) that they will not receive active treatment until the research study is over.
C) if they are in the placebo group or the treatment group.
D) only that they are participants in a research study and that they can quit at any time.