The suffix -cide means related to killing, and the prefix homi- means related to humans, or to sameness (depending on context). Here it could be said to mean either related to humans or related to being the same, because “homicide” involves a human killing a human, or “murder.” To provide further help, “theft” is stealing; “aggression” is hostility, anger; “passivity” is the opposite of aggression, sometimes calm or weak; “incentive” is motivation, the reason for doing something. 

The prefix gyne­- means relating to women or to women’s reproductive systems. “Gynecology” is the medicine that specializes in treating women. To provide additional help, the medicine that specializes in treating children is called “pediatrics.” 

“Fanaticism” is a fanatic outlook or fanatic behaviour. “Fanatic” means marked by excessive enthusiasm and often intense uncritical devotion. Both words share a link with the root “fan,” as in football fan. “Fanaticism” can also be called “zeal,” which is a strong feeling of interest and enthusiasm that makes someone very eager or determined to do something. If you show “zealous” behaviour then you are full of “zealotry.” To help you “idealism” is the attitude of a person who believes that it is possible to live according to very high standards of behavior and honesty. “Jive” means a type of fast lively dance or music that was especially popular in the early part of the twentieth century; it can also mean informal language that includes many slang terms.

"Listless" means lacking energy and enthusiasm and is therefore most similar in meaning to "lethargic." For clarification, the other four answer choice are all loosely synonyms of one another and antonyms of "listless" and "lethargic."

"Reckless" means uncareful; Prudent means careful; Destructive means causing damage; Disabled means injured; and Crimson is a shade of red.

Something that is "gruesome" is grotesque and horrible. For clarification, mediocre, middling and average are all synonyms that mean in the middle.

"Benevolence" means goodness; someone who is benevolent is virtuous. For clarification, "malevolence" is the antonym of benevolence and means evil or vice.

“Credentials” are qualities that make a person suitable for a job or task. It is closest in meaning to "qualifications." To provide further help, “misdemeanors” are petty crimes, bad behavior; “prospects” are opportunities; “requirements” are things that are needed; “excessive” means too much. 

Something that is "audible" is able to be heard. The prefix, aud-, generally refers to sound or hearing, as in audible or audio.

"Nebulous" means hazy or indistinct, so "hazy" is the correct answer.