Cory is responding to the writing prompt below. examine a department of education advertising campaign that promotes literacy. analyze the campaign to discover the target audience and the advertising techniques used. then evaluate the effectiveness of these advertising techniques. write a formal essay in which you explain how the advertising campaign effectively promotes literacy to a range of audiences. which is the best main topic for his response essay? a) a summary of the goals of the department of education b) a description of the advertising campaign’s target audience c) an analysis of the impact of the advertising campaign d) an argument for why literacy is important