Dr. jones has submitted a study for review by the irb. he is an active member of the organization's irb and is listed as a co-investigator in the section detailing study personnel. as a member of the irb, he must leave the room before the final discussion and voting at the irb meeting when this study is reviewed.

I assume your question is why does he have to leave the room before the final discussion?

Well, he might have, as an active member of the IRB, a conflict of interest, meaning that he could be biased to vote in favor of his work which is incorrect, as researchers need to be objective regarding what they are studying. The National Academy Press. (2009). On being a scientist: Responsible conduct in research (3rd ed.). Washington, DC: Author. Is a great book you might read to understand the duties of any IRB and its members responsibilities, also the researchers' behavior. On it, is detail why a conflict of interest can guide to the decision of not conducting a certain research, independently of the undeniable reputation of Dr. Jones.

a. he allowed the people he conquered to keep their customs and religions.

he captured babylon and freed the jewish people to return to judah.