Answer: A. the use of diagrams
Procedural texts are those that provide information regarding how to act in a particular situation. In this case, the texts explain what to do when you are riding a bike and find yourself in an intersection. Diagrams are helpful in this case because they provide visual support to the ideas in the text. Character development, mood and persuasive language, on the other hand, are more common in other types of writing, such as fiction.
