The correct answer is: D. All of above
A design template can be applied to the current slide only, to all the slides in the presentation, or to all new presentations you create.
To apply a design template to the current slide only, select the slide in the Slides pane, and then on the Design tab, in the Themes group, click the Design Template button, and then click the design template you want to apply.
To apply a design template to all the slides in the presentation, select the slide in the Slides pane, and then on the Design tab, in the Themes group, click the Apply to All button.
To apply a design template to all new presentations you create, on the Design tab, in the Themes group, click the Set as Default Theme button.
Here is a brief explanation of each option:
- To current slide only: This option applies the design template to the current slide only.
- To all the slides: This option applies the design template to all the slides in the presentation.
- To all the new presentation you create: This option applies the design template to all new presentations you create.