As you're delivering a presentation,connect your ideas by ________ every time you shift topics.

A) encouraging your audience to check out your Facebook page
B) relying on verbal flourishes and dropping sound bites
C) reaching out to the backchannel via Twitter
D) summarizing what you've said,and previewing what's to come

Summarizing what you've just spoken about and previewing what's to come is an effective way to connect your ideas and keep your audience engaged. It helps them understand the structure of your presentation and the flow of your ideas. Encouraging your audience to check out your Facebook page or reaching out to the backchannel via Twitter might be distracting and could take away from your presentation. Relying on verbal flourishes and dropping sound bites could also be ineffective, as it might make your presentation sound disjointed or unorganized.