Answer: D. Besides I wouldn't do it. Of course not. I know well enough that a step like that is improper and might be misconstrued.
Explanation: The sentence from this excerpt of "The Yellow Wallpaper" by Charlotte Perkins Gilman that suggests that despite her growing insanity, the narrator still retains some awareness of what society expects of her is stated above. The narrator knows that jumping out of the window is improper and that taking such a step could be misinterpreted. This shows that she still retains awareness of what society expects of her.