My personal opinion to what the answers are:
Readers are uneasy with the narrator's growing instability,
Readers question the narrator's ability to act rationally,
Readers understand that the account given by the narrator is true.
I hope this helped, again, this is only my opinion to what I believe the answers are.
The captain refuses to turn back because he is determined to prove himself by getting more oil first. His internal conflict is that he is prioritizing the oil over his wife's feelings. Mrs. Keeney becomes sad and distant because her husband is more focused on earning the respect of others.
a. the daily lives of ordinary people
The realist movement was a result the exotic influence of Romanticism which led the common issues about the people and their problems and suffering which lay hidden behind the bars. The movement focused on the daily lives of the people which was based on direct observations about the modern world.