Which of the following is true of a main idea of an informational text?the main idea includes the reader's opinion of the textthe main idea includes the author's stancethe main idea includes the sound of the text

The main idea of an informational text typically includes the author's stance. This is because the main idea is the central point or thought the author wants to communicate to readers. It's the "big picture" or the most important point that the writer or speaker is trying to convey. It does not include the reader's opinion of the text, as the main idea is independent of the reader's interpretation. Similarly, the main idea does not include the sound of the text, as this is more related to the style of writing rather than the central point or message.