PT 45 S4 Q21

Etiquette firmly opposes both obscene and malicious talk, but

Which one of the following judgments most closely corresponds to the principles of etiquette stated above?
(A) Neighbors should not be gruff or unfriendly to one another when they meet on the street.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Practice Set: "Illustrating/Identifying Principles" Questions, Set 1 - Illustrating