What is the MOST LIKELY purpose of the series of questions near the end of the speech? Group of answer choices to express to listeners the importance of the topics of the questions to imply that the questions do not have any answers to encourage listeners to think about the possible answers to the questions to use questions to indicate that the future cannot be predicted

to encourage listeners to think about the possible answers to the questions  

Explanation:

The questions at the end of the speech have the main function of stimulating the listeners' reasoning about the theme of the speech and the arguments that were expressed with the speech. In other words, we can affirm that with this strategy the author intends to highlight the importance of the questions surrounding the theme and encourage listeners to think about the possible answers to the questions expressed.

the correct answer is (a) . answer should be simple, clear and brief.