The correct answer is A. Skeptical : Trustfulness.
Vindictive is the opposite of mercy. Skeptical is the opposite of trustfulness. Modest is the opposite of arrogance. Insightful is the opposite of naivety. Avaricious is the opposite of generosity.
Vindictive means having or showing a desire for revenge. Mercy means compassion or forgiveness. Skeptical means doubting or questioning the truth or validity of something. Trustfulness means the quality of being trustworthy or reliable. Modest means having or showing a moderate or humble estimate of one’s own importance or abilities. Arrogance means an attitude of superiority and contempt for others. Insightful means having or showing an ability to see into or understand things clearly. Naivety means lack of experience, wisdom, or judgment. Avaricious means having or showing an extreme or inordinate desire for wealth or possessions. Generosity means the quality of being generous.
In the original pair of words, vindictive is the opposite of mercy. This means that someone who is vindictive is likely to seek revenge, while someone who is merciful is likely to forgive. In the answer pair, skeptical is the opposite of trustfulness. This means that someone who is skeptical is likely to doubt or question things, while someone who is trustful is likely to believe or trust others.