"Compile" means collect into a volume or a list, so "organize" would be the best choice here. "Disperse," meaning scatter, has the opposite meaning.

To "encapsulate" something means to surround it or include it. Think of a capsule of medicine; the capsule surrounds or includes the medicine inside it. So, "include" is the correct answer.

The prefix "ob-" means get in the way of or hinder, as in “obstruct” or “obstacle.” So, "hinder" is the correct answer. None of the other answer choices are close in meaning to "obstruct": “assist” means help; “forfeit” means quit or surrender; “despicable” means evil or wicked; and “astute” means sharp or clever.

The prefix "super-" usually means better or best but can also mean over or on top, so the word “superimpose” means to put something on top of something else. The closest answer choice to this is “overlay.” To provide further help, “interject” means interrupt; “mitigate” means lessen, alleviate; “declare” means announce, say formally; “promote” means support.

The prefix per- means through, so the word “pervade” means to spread, or to have spread, throughout something. To provide further help, “undermine” means weaken. 

In this question, the answer that makes the most sense is strengthen or support.  When you reinforce, you strengthen something.

To "expedite" literally means "to free the foot;" (you may recognize the "ped" root from words such as "pedicure"). It derives from the same roots as the noun, "expedition," though it has a different meaning. Given the etymology of "expedite," you might (logically) think that it means "to flee." A red flag arises, however, when you see the other option of "evacuate," which has a very similar sense to "flee." Sometimes you can use an observation like this to eliminate possibilities: two near-synonyms among your answer choices likely means that both are wrong. The true sense of the English word "expedite" is to make easier or facilitate: your "foot" is "freed" (metaphorically) from imPEDiments.

The root "cis" means related to cutting and the prefix "ex-" means related to leaving or being sent away. So “excise” literally means to cut away, but also means “remove.” To provide further help, “prepare” means get ready; “create” means make; “edify” means build; “invoke” means call upon. 

To "inundate" means to flood, either literally with water or (more commonly) metaphorically with anything that happens to be "swamping" you. If you have a waterbed, you will be familiar with its "undulations" (movements in wavelike motions), which is a related word. You may have recognized the "in-" root, meaning "into," and chosen "enter." Though this is incorrect, don't beat yourself up over it—it's better to base a guess on one root than to guess randomly.

The prefix "en-" means put into or cause to be completely something, in this instance the word “engulf” means completely overcome or completely surround. It is usually heard in a sentence like “the log was engulfed in flames” meaning that it was overcome or surrounded by fire. So, "overcome" is the correct answer. None of the other answer choices are close in meaning to "engulf": ”embitter” means make someone bitter; “parody” means make fun of or imitate in order to make a joke about; “akin” means similar to; and “amiable” means sociable and friendly.