Some of the questions with the answers contained in the content, which may be one of a range of presentation which may not need to ask. Because the answers are contained in a presentation.
Some questions are answered in the content already. This could be at any time of the presentation. This may not be asked at all. The answer is contained in the presentations.
Some questions with answers in the content. Which may be in the range of presentation. Which who may be no need to ask. Because the available in the presentation.