8 who tries to advertise something for personal benefit A DK promotes the product whose endorsed is he himself b. Dr. Jo Gaza tries to sell his books to those who have lung disease 8. Who tries to advertise something for personal benefit? a. DK promotes the product whoso endorser is he, himself. 9. What is the agenda of Dr. Jo Gaza's interview on GNA? His purpose is to a educate people about the bad effects of e-cigarette b. encourage students to aspire being doctors of medicine in the future 10. Which of the two sources are you going to use as a reference for your report in Science? I'd use because a. DK'S ViewTube content; his vlog is not boring for teenagers b. Dr. Gaza's interview; he spoke of facts as an expert on the topic