A functional text is a text to fulfill a certain function, such as instruction manual or description of getting somewhere. A dialogue would be too confusing and redundant for this purpose; the best functional text would simply describe the information it needs to provide in a clear manner.
Explanation:
rat or mouse is just giving you an idea of what he sounded like while walking through the field
Answer:
Plots are the events of the story.
B. Ribsy rolled in the dirt and that's why Henry went back home to clean him up while Maude the Mule was Performing.