Answer:
The correct answer is B) Writing down everything you know about your topic.
Step-by-step explanation:
While planning your research, it is important that you are taking into account what you already know about the topic at hand. In this way, you are able to test whether or not this knowledge is valid if it is proven or misproven in several credible sources.
A is not the answer because while knowing when research is due is important, it is not the most important part of research.
C is not the answer because just because a source supports your views does not mean that it is valid or credible.
Finally, D is not the answer because a part of planning research is keeping everything organized--with organized planning, losing parts and pieces will not be an issue.
Therefore, the correct answer is B) Writing down everything you know about your topic.
Hope this helps! Have a beautiful day! :)