The question that is the most useful to ask when revising a research paper is B) Is there enough supporting evidence for the claims?
In order to have a well written and cohesive research paper we have to be sure about the topic we are talking about, and we need to have a deep knowledge of it, so information is a key part of our work.
The other options make reference to planning an essay or matters of presentation more than the real investigations. that's why they can not be correct.
Numbers 4, 7, and 12 have parallel sentence structures. You can tell because the forms of the verbs are consistent: all -ing verbs, or all infinitive (to...).