Dear Ron,
I have difficulty with another question of the same passage:
The primary purpose of the passage is to
A. summarize findings in an area of research
B. discuss different perspectives on a scientific question
C. outline the major questions in a scientific discipline
D. illustrate the usefulness of investigating a research topic
E. reconcile differences between two definitions of a term
I think the main idea of the passage is: the author presented his opinion about difficulties in a research area. (one of the two difficulties is the difference in perspectives). Therefore, I had a hard time finding the answer.
What’s wrong with my summary?