Ian is preparing for a speech that he was invited to deliver in front of an entire elementary school about racism in America. In order to be well prepared for his speech, he wants to phone the principal of the school ahead of time to find out more about his audience. Which types of questions should he ask?a.He should ask questions about their ages, their gender, their ethnicity and cultural background.b.He should ask questions about the location of the speech, the size of his audience, and who his target audience is.c.He should ask questions about their education, occupations, and level of expertise. d.He should send out a lengthy survey to his audience about their perceptions and what sorts of things they expect to learn from his speech.