A Suggestion
You gotta read the RFE carefully. In my case they asked for transcripts as well, so we also send the notarized copies of transcripts, actual diploma, high school and grade xii certifcate, evaluators resume, a cover letter just describing the response based on the RFE. You can mark each attachment as an exhibit and then refer to the exhibits in the cover letter. Also, since you dont have an attorney I would recommend reading the RFE carefully. Do not oversend the documents that are not asked, but cover all the questions on the RFE.