One way the Design tab in the PowerPoint Online application is used is to: B. choose a variant.
PowerPoint Online can be defined as a web-based software application that is designed and developed by Microsoft Inc., in order to avail its end users an ability to create slides, customize backgrounds and choose a variant, especially during a presentation.
This ultimately implies that, choosing a variant is one way the Design tab in the PowerPoint Online application is used by end users.
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