In “an unforgettable journey,” what purpose does the introduction serve?
a.) it explains why the hmong were uprooted.
b.) it summarizes the story to follow.
c.) it shows the author’s point of view.
d.) it argues the author’s main point.

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.