You should refine your project before handing it in or turning it in to make sure you haven't made any mistakes that you haven't corrected beforehand. It also helps you refresh your memory about what you wrote or have made and in turn, if you present, it gives you a slight upper edge in presenting since you have a slight feeling of what you can say beforehand.
Basically, correct any mistakes, make sure the project is in pristine condition (so you can earn more points), and to refresh your memory in what you're going to say (if you're presenting).
Well D and A couldn't be it so I think it'd either be C or B. Honestly I think it is most likely to be C.
Answer:
B. High priest
Explanation:
The Brahmins specialised as intellectual, priest, teachers, and protectors.
