A. The narrator responds to his fear by staying in the big room to learn more.
Q1: would be A as it has opinionated response
Q4:would be D
Q3:D again as a trusted source makes credibility
Q5: I believe as that shows and starts into a my opinion statement
Answer: The first hot air balloon flight 19 September 1783
Explanation: The first 'aerostatic' flight in history was an experiment carried out by the Montgolfier brothers at Versailles in 1783. At long last, man could leave the surface of the earth below.