Which action changes the pointer to the pen tool during a slide show?

The action that changes the pointer to the pen tool during a slide show involves clicking the pointer options button. This feature allows presenters to switch their pointer to a pen tool, which enables them to draw or highlight specific areas on the slide in real-time. This is particularly useful for engaging the audience and emphasizing important points during the presentation.

When you click the pointer options button, you typically access a menu that allows the selection of different pointer types, including the pen. This interactive element enhances presentations by providing a dynamic method for presenters to communicate their ideas clearly.

The other choices do not directly lead to the activation of the pen tool during a slide show. While some options may seem relevant to tool selection or menu navigation, they do not pertain to changing the pointer to the pen tool specifically within the context of an active slide show.