Which of the following is the role of supporting details in a text?

to give information about topics related to the main topic
to give information about topics related to the main topic

to help the reader understand the central idea
to help the reader understand the central idea

to show the reader how to find more details about the topic in other texts
to show the reader how to find more details about the topic in other texts

to give the author's opinion about a topic

The role of supporting details in a text is to give information about topics related to the main topic and to help the reader understand the central idea. They do not typically show the reader how to find more details about the topic in other texts, as that would be the role of citations or references. The supporting details may sometimes include the author's opinion about a topic, but this is not their primary role.

The role of supporting details in a text is to give information about topics related to the main topic and to help the reader understand the central idea. Additionally, supporting details can show the reader how to find more details about the topic in other texts. However, giving the author's opinion about a topic is not typically the role of supporting details.