Active voice verb in the sentance “Ferb Fletcher crosses the park by doing cartwheels.”

Based on this work of satire, what is most likely the authors opinion?

What does the excerpt tell about the narratos mental shift i suppose i shall have to get back behind the pattern when it comes night,and that is hard? @a.the narraor believes that the wallpaper is beatiful b.he believes that the woman in the wallpaper will attack him when he sleeps c.the narrator believes that he cant escape from the windws with the bars d.that the narrator was once behind the wallpaper

Which paired device and theme does the poet convey in these lines