tranquility
familiarity
concord
benevolence
Answer is Wrong!
Answer is Right!
The correct answer is C. concord.
Political differences introduced a note of discord into their relationship. This means that their political differences caused them to argue and disagree. Discord is the opposite of concord, which is harmony and agreement.
Tranquility is a state of peace and quiet. Familiarity is the state of being well-known or well-recognized. Benevolence is the quality of being kind and generous.