Which question is the most useful to ask when revising a research paper? a. is this the right subject to write about? b. is there enough supporting evidence for the claims? c. is the essay written using 12-point font? d. is each paragraph the same length?

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.

i think its d

hope i can you

there is no excerpt.

put the excerpt in the comments and ill answer.