Final answer:
Both statements are true because research proposals might need approval from more than one IRB, and the fundamentally active engagement of IRBs ensures that ethical standards are met in research involving human participants.
Step-by-step explanation:
The correct answer to the question is c. Both statements are true. A research proposal may indeed have to pass the scrutiny of more than one Institutional Review Board (IRB), especially in cases where multiple institutions are involved, or there are additional ethical considerations such as cultural sensitivities or international regulations. The primary role of IRBs is to ensure that research involving human participants adheres to ethical standards, which includes protecting human dignity, safety, and securing informed consent from participants. Therefore, the second statement is also true as the IRB is indeed involved to ensure ethical standards are being met.