Which of the following indicates respect for the audience and helps foster successful communication?

A) Avoiding the "you" attitude
B) Jargon and buzzwords
C) Euphemisms
D) High standards of etiquette
E) Biased language

High standards of etiquette, such as using polite language and being considerate of cultural differences, show respect for the audience and can contribute to successful communication. Avoiding biased language, using clear and concise language, and avoiding jargon can also demonstrate respect for the audience. Euphemisms, on the other hand, can sometimes confuse or mislead the audience, so their use should be considered carefully.