Rachel needs to make a presentation on ethics and etiquettes in college. She has about 30 minutes to deliver her complete presentation. How can Rachel ensure that the presentation is completed within the specified time frame of 30 minutes? A. use the slide timing feature to rehearse and set the time per slide B. use a lesser number of slides to reduce the total time taken for the presentation C. use the View Slideshow tab to set up the timing for the presentation D. use reduced content to complete the presentation on time E. use a simple slide layout to move through slides faster