When Something Blocks the Light: Author's Purpose

Why did the author most likely write this passage?

• A.To sell a new video game
• B.To tell a spooky ghost story
• C.To teach readers about how shadows are made

Authors use examples to explain their ideas. Which sentence from the passage gives an example?

• A.For example, when you stand in the sunlight, your body blocks the…
• B.They are created because light travels in straight lines.
• C.The bigger the object, the bigger the shadow!