What is the difference between an impromptu debate and an extemporaneous debate

What does stanton accuse men of in this excerpt from the declaration of sentiments

The institute of international research is holding its annual convention. this year more than 500 scholars have been invited to hear research reports on many timely topics. approximately 250 big name scientists will be winging their way to washington, d.c. how can the underlined sentence be revised so that it fits the tone of the passage? a) approximately 250 people will be in washington, d.c. b) approximately 250 bigwigs will be flying to washington, d.c. c) approximately 250 science people will be going to washington, d.c. d) approximately 250 well-known scientists will be arriving in washington, d.c.

Which detail should most likely be cited in a historical criticism of a literary work ? the author's use of dialogue in the literary work the impact the literary work has on modern audiences the popular cultural trends of the time when the work was written the audience that the literary work is likely to reach in the future