An "instant" is a very short period of time. Whenever something happens in a very short time, it happens "instantaneously." This means that it happens almost immediately.

The prefix "in-" here means inside, so the word “interior” means having to do with or located inside of something, making "inside" the correct answer.

The prefix "ex-" can mean out, so it makes sense that "extract" means pull out of someone or something. For example, if one of your teeth became infected, you would probably have a dentist extract the infected tooth—that is, pull it out. Just because "expect" and "extract" both begin with "ex-" doesn't mean they are synonyms—in "expect," the "ex-" isn't functioning to mean out; it just intensifies another root's meaning. (To "inter" something or someone is to bury that thing or person.)

The prefixes "ir-" and "im-" mean not, so it makes sense that "irresponsible" means not responsible and “immature” means not mature. If you are “responsible,” you are mature and dependable. “Immense” means massive or very large. “Immense” is a synonym of “gigantic,” and an antonym of “miniature.” “Gigantic” means very big and “miniature” means very small.

The prefix "super-" means better or best, so it makes sense that “superior” means better than something else. If you really like chocolate chip cookies, you might claim that they are "superior to" all other kinds of cookies.

The prefix "non-" means not, so “nonfictional” describes a story that is not fictional, or in other words, true and based on things that really existed or happened. Something that is “false” is not true; an “adapted” means transferred from one medium to another, e.g. a movie adaptation of a book; “mocking” means ridiculing and taunting; and “fraudulent” means pretending to be authentic while actually being inauthentic.

The prefix "pre-" means before, so it makes sense that "prepared" means ready for something before it happens or having been made before needed. "Ready" is thus the best answer choice. As for the other answer choices, "desolate" means uninhabited and stark; "fortunate" means lucky; "unintentional" means not done on purpose or unwitting; and "emergency," when used as an adjective, means reserved for use during emergencies.

The prefix "post-" means after or behind, so it makes sense that "postpone" means delay, especially until a defined time after something occurs. As for the other answer choices, “commence” means begin or start up; “intend” means purposely mean to do something; “desire” means want; and “dispel” means get rid of some type of bad feeling.

The prefix "mis-" can mean not or wrong, so it makes sense that to "misbehave" means to behave badly or to do the wrong thing, or “disobey.” As for the other answer choices, "adhere" means listen to or obey when used in the context of rules, and stick to when used in the context of physical materials; “discover” means find or find out; “uncover” means show, reveal, or bring out from hiding; and "declare" means state or make known.

The “optimum” thing in a group of things or set of choices is is the best one. “Primary” means coming first in a sequence or most important and “secondary” means coming second in a sequence or of lesser importance than other things.