Notice the little ending on the word "personify." The "-fy" suffix is part of a large family of suffixes and "infixes" (little parts that come inside of words) such as "-fication," "-fac-," and so forth. In general, "-fy" means to do or to make. To "personify" something is to make it a person. Okay, that is a bit strange. But what it means is that one thing makes another thing present in some way. It represents that other thing. Thus, if we say, "Peter personified the very essence of greed," this means that Peter made present the very essence of greed in his person. Thus, "symbolize" is an excellent option.

We tend to think of efficient people as being quick at what they do. This is often the case, but the word "efficient" is above all about being able to get things done. It comes from the same Latin root from which we get the suffix "-fy" / "-fication" and several other related forms. All of these mean to do or make. Thus, it is best to use the word "efficient" to refer to someone who is "productive." If a project is just very slow-going, an efficient person may therefore move slowly through the work. However, so long as he or she does it in a productive manner, he or she deserves to be called "efficient."

The suffix "-cide" means related to killing and the prefix "pest-" means related to pests, such as insects or rats. In this instance, since there is no option for “rat killer” the correct answer is “insect killer.”

An "anglophone" is someone who speaks English. The prefix anglo- always suggets at a relationship between the word and England, and the suffix -phone relates to language or speaking. To provide further help, "ill-equipped" means not prepared.

"Xenophobia" is unreasonable hatred of strangers or foreigners. The best choice is "prejudice" because it means unreasonable feelings, typically negative, towards a particular thing, person, or group. Considering the other choices, "rescind" means take back, "sway" means move back and forth, and "careful" means cautious.

The prefix "graph-" means writing and the suffix "-ology" means study of, so “graphology” is the study of writing.

The suffix "-phobia" means fear of and the prefix "arachno-" means related to spiders, so “arachnophobia” is a fear of spiders.

The root "anthro-" or "andro­-" means having to do with man. Also, the suffix "-ology" means the study of (something), so we can assume correctly that “anthropology” is the study of mankind.

The Latin root "ego" means self, and the suffix "-mania" means excessive or madness, so “egomania” is excessive love of oneself, or “self-obsession.” “Self-loathing” is hating oneself; “self-interest” is what one wants, without caring about how others feel; “self-serving” means having concern for one’s own prosperity and interests above others; and “self-sacrifice” is the opposite of “self-serving” and “self-interest"; it means placing other people's needs and desires above one's own.

Stay as close as possible to the original word, for there are many tempting wrong answers. When something is "formless," it has no definite shape. This certainly is the case for "gaseous" things (since they are "gas like"). Also, "inconsistent" speech is lacking the general form that speech should have. That is, it lacks proper consistency. The word "amorphous" literally means without form. The word "morph" means take on a new form or shape. The prefix "a-" means without, as in "atypical," meaning not typical or without features that are typical.