Fill in the blanks
The correct words are ''internecine: destructive to both sides in a conflict and complacent: showing smug or uncritical satisfaction with oneself or one's achievements.'' We all know that any kind of conflict or struggle is destructive to both sides, so option 5 is correct. It fits in the context.
Plaintive: sounding sad and mournful. condoling: express sympathy for (someone); grieve with.
Sweet: having the pleasant taste characteristic of sugar or honey; not salt, sour, or bitter roseate: rose-coloured.
Proposition: a statement or assertion that expresses a judgement or opinion. overconfident:excessively confident.
Exchanges: an act of giving one thing and receiving another (especially of the same kind) in return. convergent : coming closer together; converging.