Answer:
Enhance the Understanding of the Audience
Explanation:
One of the goals of effective informative speech is to enhance the understanding of the audience. Since Mario, in this case, is tasked with an important assignment she means business. Mario explains the exact roles of students in the annual function. She is specific since the school has put limitation on the first-year students. In order to make students understand what they are supposed to do Mario describes the roles of students. Mario wants to make sure students must comprehend her explanation of specific roles.