It is clear by the context of the question that you need a word that contrasts with "rude" or "bizarre behavior". Of the 5, urbanity would do the trick.
Former Senior Instructor, Manhattan GMAT and VeritasPrep
Vice President, Midtown NYC Investment Bank, Structured Finance IT
MFE, Haas School of Business, UC Berkeley, Class of 2005
MBA, Anderson School of Management, UCLA, Class of 1993