Explanation is the correct answer.
Scientific investigation is the way researchers and scientists found to produce evidence to answer the questions about the world around us by using a systematic approach. Perceiving the question is the first step in any scientific investigation. <u>The second step is forming a hypothesis. This step is derived from two goals of psychology-description and explanation.</u>
A generally accepted fact does not have to be cited in an academic paper, whereas a paraphrase, another person's opinion, and a diagram have to be cited.
Maybe expelling the Christians ;). But if we look at it seriously, people should learn to adapt and live with each other, without thinking that someone is under their level, not worrh the citizenship etc.
I hope this helps!