Naïve means inexperienced or having a lack of judgment.  

Prudent means cautious or wise.  

“Recalcitrant” is an adjective used to describe someone’s disobedience or stubborn resistance. Note that “jubilant” means very happy.

Jaunty means cheerful, confident, and lively.

Charismatic describes a person who is charming, compelling, or has a magnetic personality.

“Sardonic” is an adjective that means “grimly mocking or cynical,” so we need to pick out an answer choice that means something like “cynical.” That means that “supportive” cannot be the correct answer, because “supportive” means “providing encouragement or emotional help,” making it an antonym, not a synonym, of “sardonic.” “Scornful,” however, is an adjective that means “feeling or expressing contempt or derision,” and because “scornful” is the answer choice closest in meaning to “sardonic,” “scornful” is the correct answer.

“Prescient” is an adjective that means “having or showing knowledge of events before they take place,” so we need to pick out an answer choice that means something like “having foreknowledge of events.” That means that “Oblivious” cannot be the correct answer, because “oblivious” means “not aware of or not concerned about what is happening around one,” a meaning quite distant from that of “prescient.” “Clairvoyant,” however, when used as an adjective, means “having or exhibiting an ability to perceive events in the future or beyond normal sensory contact,” and because “clairvoyant” is the answer choice closest in meaning to “prescient,” “clairvoyant” is the correct answer.

“Insular” is an adjective that can mean “ignorant of cultures, ideas, or peoples other than one's own,” or “lacking contact; isolated” or “relating to islands.” So, we need to pick out an answer choice that means something like “ignorant of other cultures, ideas,” “lacking contact with other people, or “of an island.” That means that “tolerant” cannot be the correct answer, because “tolerant” means “showing willingness to allow the existence of other opinions,” making it an antonym, not a synonym, of “insular.” “Narrow-minded,” however, is an adjective that can mean “prejudiced,” and because “narrow-minded” is the answer choice closest in meaning to “insular,” “narrow-minded” is the correct answer.

“Disingenuous” is an adjective that means “not candid or sincere,” so we need to pick out an answer choice that means something like “not sincere.” That means that “genuine” cannot be the correct answer, because “genuine” means “sincere” when referring to a person, emotion, or action, making it an antonym, not a synonym, of “disingenuous.” “Duplicitous,” however, is an adjective that means “deceitful,” and because “duplicitous” is the answer choice closest in meaning to “disingenuous,” “duplicitous” is the correct answer.

“Craven” is an adjective that means “cowardly,” so we need to pick out an answer choice that means something like “cowardly.” That means that “plucky” cannot be the correct answer, because “plucky” means “courage in the face of difficulties,” making it an antonym, not a synonym, of “craven.” “Timid,” however, is an adjective that means “showing a lack of courage or confidence,” and because “timid” is the answer choice closest in meaning to “craven,” “timid” is the correct answer.