Answer:
The best answer is b. Institutional review board.
Psychologists are required to adhere to ethical guidelines when conducting research involving human participants. Before beginning their research study, they must have their study design reviewed and approved by an Institutional Review Board (IRB) to ensure that the study meets ethical standards and that the rights and welfare of the participants are protected. The IRB is an independent committee of experts that reviews and monitors research involving human participants.
Step-by-step explanation: