Answer:
Step-by-step explanation:
The answer could be one of two words. If they treated each other with respect, then the choices are
- civility: meaning formal polite respect.
- decorum: treatment with good taste
I don't think there's another choice and of those two, I don't know which one to pick since they both mean pretty much the same thing. In addition, both are nouns, and both refer to behavior.
Answer: I would pick civility myself.