Because Dr.Chambers worked in a highly___________field of scientific research, her reports and papers were necessarily filled with technical jargon meaningless to all but a few of her coworkers.
Answer: D
If the technical jargon used by Dr. Chambers could not be understood by anyone except a few of her own co-workers, she mast have been working in highly specialized field and not in a highly unstable, or regarded or controversial or subsidized field. So, (D) is the answer.