I believe it would be the first option, "periods of uncertainity"
C) Setting. For example, a moody Draculan vampire most likely has his acts take place in a stormy, dark, lonely castle.
Ion-an action or process, or the result of an action or process.
root and base words-can have a prefix or a suffix added to it
mutate-change
perceive-to observe
perception-the action of observing
jour/journ-day
Pretty much all the ones you MUST know
