Which of the following actions is needed to insert a new slide from an outline?

To insert a new slide from an outline effectively, utilizing the new slide button in the slides group is the correct action. This button allows you to quickly add a slide based on the content available in your outline, streamlining the process of creating presentations. The slides group is conveniently located on the Home tab, ensuring easy access when you are working on your slide deck.

While other methods may exist for slide creation or content addition, the new slide button specifically aligns with the task of incorporating outline content into your presentation. It helps maintain structure and flow, as it directly allows you to insert a slide that corresponds to the hierarchy of the outline. This feature is integral to efficient slide management, assisting users in organizing their ideas as they develop their presentations.