"what would you think if you went to a doctor because you were ill and she told you to watch seinfeld as a part of your treatment? " is an example of which type of attention getting device from an introduction to a presentation

"What would you think if you went to a doctor because you were ill and she told you to watch Seinfeld as a part of your treatment?" is an example of question, as type of attention getting device from an introduction to a presentation.
This question will capture the attention of your audience and will prepare them for the main topic.

It should be at the center of any map going vertically: the prime meridian, as it passes through greenwich,  england, is considered 0 degrees longitude

Sorry wish i could