What should the readers pay attention to is how the characters say, behave and feel in every line or how they were able to react in each scene or part. This will allow them to notice how the characters evolve or how they were able to develop in each scenario that is happening on the character's life as the story goes. For this is essential in reading a story or a book.
I think the reason why the summary need to be revised is : C. the summary lacks transitions that connect ideas For example, we need to add transition between -enkai wanted to save his cattle- and -He grew a tree that bridged the sky and the earth-
The stanza in Robert Frost's 'The Road Not Taken' that most supports the theme that sometimes human beings feel conflict because they cannot have everything they desire is STANZA 1, as it's the one that speaks of the sorrow he feels for not being able to take both roads.