what is the purpose of a hook in an introductory paragraph?

1. To see if the perspective of the writer.
2. To grab the interest of the reader.
3. To establish the tone of the essay.
4. To introduce the main topic of the essay.

All of the options listed can be purposes of a hook in an introductory paragraph. However, the most accurate and comprehensive answer would be option 2: to grab the interest of the reader. A hook is designed to engage the reader and make them want to continue reading the essay. While it may also reveal the writer's perspective, establish the tone, or introduce the main topic, its primary goal is to capture the reader's attention.