In her book The Woman Warrior: Memoirs of a Girlhood Among Ghosts, author Maxine Hong Kingston examines themes
______ childhood, womanhood, and Chinese American identity by intertwining autobiography and mythology.
of:
of
of—
of,
Choice B is the best answer. “Themes of childhood” is one noun phrase, with “themes of” implicitly carrying over to the other
items on the list (“themes of childhood, [themes of] womanhood, and [themes of] Chinese American identity”).  
Choice A is incorrect. This choice inappropriately breaks up the introduction of a list. Also, “In her book…themes of” is not an
independent clause, thanks to the dangling “of” at the end, so it can’t precede a colon. Choice C is incorrect. This choice
inappropriately breaks up the introduction of a list. Also, “In her book…themes of” is not an independent clause, thanks to the
dangling “of” at the end, so it can’t precede a single dash. Choice D is incorrect. This choice inappropriately breaks up the
introduction of a list. “Themes of” implicitly carries over to each item on the list (“themes of childhood, [themes of]
womanhood, and [themes of] Chinese American identity”), so we don’t want to use a comma to separate it.