She looked towardthe sunset. This is the correct answer because you can say "she looked towardthe sunset" since it makes a lot of sense and you can't say "she looked betweenthe sunset" because it's just a weird answer... Towardis the best preposition to use here in this sentence.
Kurt Vonnegut emphasizes in his novel "Harrison Bergeron" that absolute justice centered on intellect, power, and attractiveness for all sections of the community is a target which would lead to bad consequence.