The answer is brave because it describes the person an adjective is a descriptive word
Answer:
I will only help with the C section
1C : on
2C : at and until
3C : During
4C : Next or Behind ....
The narrator is invited to dinner in remembrance of an event that occurred some time ago in which the Time Traveler announced he created a time machine. The Time Traveler then arrives, ragged and dirty. After cleaning himself up and eating he recounts his story those who were invited including the narrator.