indirect characterization is when a character is described or characterized indirectly. this means the author describes a character with details; what the character says or does.
it does not simply say "____ is ____ (description like mad, annoying, sad, pretty).
in this example, Gloria "withdraws into a shell where she feels safe and hidden." what is this saying about her? she is shy and insecure. the author does NOT say "Gloria is shy." Or "Gloria is insecure."
I think the correct answer from the choices listed above is the third option. The christian theme of uncle tom’s cabin comes closest to reflecting the power of emotion over logic which a common trait of american romanticism. Hope this answers the question. Have a nice day.