Part B: Which detail from the text best supports the answer to part A? There's a certain slant of light

battle of midway

during world war ii, it was the "battle of midway" that was the first significant us victory in the pacific, since the us was able to inflict heavy losses on the japanese fleet.

she was trying to use   reliable narrator.

as for symbolic actions, the narrator's tearing down the wallpaper in an attempt to find the "woman" in the wallpaper represents her struggle to retain or regain her sanity.   the wallpaper has been part of her confinement and by her tearing it down, she is freeing herself from that confinement.