Answer:
A ). explains something that happened and the reasons why.
Explanation:
Cause-and-effect is the organizational structure that the author primarily adapts to show an incident or event that took place and the reasons or causes which led to it. Such an organizational pattern aims to display the causal association among the events and helps inform the readers about the true causes of that particular event with the help of sufficient evidence to support it. Thus, option A is the correct answer.
