Which Statements,descriptions,or Pieces of Information Are Considered an Essential Element

Which statements,descriptions,or pieces of information are considered an essential element of the informed consent form for a research study?

A) "Patients who were contacted by study personnel and who signed (or whose proxy signed) informed consent were enrolled in the study cohort."
B) "The research has been reviewed and approved by the Human Participants' Review Committee, which include Jane Doe and John Smith."
C) "If you have any concerns about the conduct of this study or your rights as a research participant, please contact Jay Tee, lead investigator for this project at…"
D) "You have been randomly assigned to the intervention group, which will receive a new experimental drug developed to prevent breast cancer."