How do bart’s bike restrictions affect sam?

a.) she cannot bring her bike on the train.

b.) she must ride the bart before all of the regular commuters ride.

c.) they do not affect her at all.

d.)she must pay 25 percent more for carrying her bike.

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.