The prefix ambul- means walk. So, to "amble" means to walk slowly and casually. This has the same meaning as "stroll." Additionally, "sprint" means run fast; "leap" means jump high; "jog" means run slowly. 

The prefix re- means again, back. As in, "remember" which means to think back on, to think about the past. So, "revise" means to edit, to go back over something and make changes. This has the same meaning as "amend." The word "amend" can be found in "amendments" which are changes made to the Constitution. Additionally, "accompany" means go with; "abhor" means hate; "abstain" means refuse to take part in; "assume" means to think is true without knowing for a fact.

The prefix mis- means badly. As in, "misinform" which means to give bad information to. So, a "mistake" is something done badly, something done wrong, an error. Additionally, your "reputation" is what people think of you; "integrity" is the quality of being honest and sticking to one's principles; "intimacy" is togetherness, closeness with other people; "gossip" is rumor, information passed informally through conversation.

The prefix ex- means outside of. As in, "external" which means outside of something. So, to "extract" means to get something out of something else or to withdraw. Additionally, "insert" means put into; "devise" means come up with (a plan); "scheme" means plot, plan something tricky or sneaky; "terrorize" means consistently cause to experience fear. 

The prefix tri- means three. As in, "triplets" which are three children born to the same mother at the same time. Solving this problem is a little tricky, however. A "tribunal" is a committee  a group of people who are meeting up to resolve some problem. The word comes from Roman origins where committees of three people would commonly rule on legal decisions and other matters. So, if you need to remember "tribunal" think of a committee of three ancient Roman men. Additionally, "empathy" is the ability to feel the emotions of others; an "occasion" is a particular time or event; "leverage" is grip, the hold one has on something; "liability" is the state of being held responsible, the condition of being legally responsible if something bad happens.

The word "exotic" means foreign or from outside of this area. The idea of being "outside" can be seen in the prefix "ex-". We use this in "exit," meaning the process of going out of some area. This prefix in general means out or out of. Although we tend to think of exotic animal, the word can be used for anything that foreign—in the sense of "not being from here."

For this question, some simple attention to the parts of the word "irrational" will help you get quickly to the correct answer. The prefix "ir-" is a form of the prefix "i-", which means "not." Think of the word "incorrect." In this word, "in-" means "not"—as in "not correct." Therefore, someone who is "irrational" is not rational. Now, "rational" means reasonable or able to use one's mind clearly. An irrational person does not think clearly. We tend to think of angry people as being irrational, but really anyone who is illogical is irrational. The simple word "unreasonable" is an acceptable synonym for "irrational"—indeed, it is almost an exact copy of the parts of the word. The prefix "un-" is used to mean "not," so "unreasonable" means "not reasonable"—quite close to "ir + rational"!

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.