It is either a, or d
(sorry i could not give a definate answer.)
The productive way to maintain a horizontal relationship
is to share responsibility to make sure your work gets done. That is delegating
tasks well within each member and ensuring everyone has job to do and could
accomplish it within the expected time frame.
The answer should be c. you should have multiple sources but not just any. they should still be on topic with what the research is about and credible on top of that.
<span>A large formal assembly of people.</span>