Answer:
1). Attention-getting sentence - Introduction
2). Call to action - Conclusion
3). Specific details about the topic - Body
Explanation:
The 'introduction' of an essay primarily functions to capture the readers' attention towards the topic and arouse their interest in it. Thus, it must be catchy enough to hook the attention and inform the readers about the key argument of the essay. While the body of the essay must function to explain the ideas, points, and arguments using sufficient evidence to substantiate the claim. And the conclusion of the essay acts as a 'call to action' as it aims to initiate the readers to take the desired action and to play the role they can play.