Final answer:
The cause/effect structure is when an author arranges their ideas and events to show causal relationships. Therefore, the correct option is C.
Step-by-step explanation:
When an author arranges their ideas and events to show causal relationships, it is an example of the cause/effect structure. In this structure, the author presents an event or situation (the cause) and then explains the result or consequences of that event (the effect). This helps the reader understand the relationship between different events and how they lead to certain outcomes. For example, if an author discusses the causes of the American Revolution and then describes the effects of the Revolution on the colonies, they are using the cause/effect structure.