Final answer:
Morgan used a topical order for her speech, dividing it into segments about horse nutrition, exercise, and grooming, for clarity and progression.
Step-by-step explanation:
Morgan organized her speech using a topical order, which involves dividing the content into distinct topics or categories related to the main subject. In her speech about horses, she chose to structure her information beginning with what horses eat, followed by how to exercise them, and concluding with how to groom them. This arrangement helps to provide clarity and an easy-to-follow progression for her audience as they learn about different aspects of horse care.