1. If you perceive that you must use a potentially harmful or offensive aid in your speech and you explicitly warn your audience at the start of your speech, and again before your introduce it, you are following what guideline for presentation aids? a. Remember your goal. b. Have a backup plan. c. Practice with your presentation aids. d. Be ethical.

Option D                                            

Explanation:

In simple words, being ethical refers to the tendency of an individual or an entity to be in accordance with the morals and rules that are regulated in the society due to customs and beliefs.

Thus, in the subject matter of presentation the presenter of the message should be ethical and if the message contains any element which is not suitable for a particular audience in respect of age, gender or race etc. the he or she must inform the audience ion advance.

the first option is correct

mark me brainliest

~courtney

answer; eliminate parking problems in cities, because a car took up only half as much space as a horse and buggy;