15. What is the primary purpose of using ethos in an advertisement? a. To provide logical arguments b. To create a sense of urgency c. To build credibility and trust d. To appeal to emotions

The primary purpose of using ethos in an advertisement is:<br /><br />c. To build credibility and trust<br /><br />Ethos is a rhetorical appeal that focuses on the character, credibility, or reliability of the person or entity making the argument. In advertising, it is used to establish trust with the audience by highlighting the credibility or authority of the brand or spokesperson.