Answer:
D. Logical reason order
Step-by-step explanation:
Logical reason order is a form of organizational pattern that involves organizing the main points of a speech by reasons that supports the goal or mission of the speech. It encompasses arranging main points of a persuasive speech by the reasons that supports the speech goal.
Since candice is trying to persuade her audience, the best speech organizational pattern to use is logical reasons order as it will help arrange the main points that will lead to the goal of her speech which is the reduction of air pollution.