Questions: Joel promises in his introduction that the information in his speech will help the listeners reduce their grocery bills. What attention-getting device has he used? citing a quotation giving an incentive relating a story providing a demonstration

The answer is: giving an incentive.

Explanation for each option:

1. Citing a quotation: This would involve Joel starting his speech with a quote from a notable person or source. Since the question mentions Joel promising that the information will help listeners reduce their grocery bills, it does not indicate that he used a quotation.

2. Giving an incentive: Joel's promise that the information in his speech will help listeners reduce their grocery bills serves as an incentive. It provides a clear benefit or reward for paying attention to his speech, which is a strong attention-getting device.

3. Relating a story: This would involve Joel sharing a personal anecdote or narrative to engage the audience. The question does not mention Joel telling a story, so this option is not applicable.

4. Providing a demonstration: This would involve Joel showing a practical example or visual aid to illustrate his points. The question does not indicate that Joel is performing a demonstration.

Therefore, the correct answer is that Joel has used the attention-getting device of giving an incentive.