Presentation designs regulate the formatting and layout for the slide and are commonly called

Solution(By Examveda Team)

Presentation designs that regulate the formatting and layout for slides are commonly referred to as Option B: Templates. Templates in PowerPoint provide pre-designed layouts, color schemes, fonts, and styles that help users create consistent and professional-looking presentations quickly.
Option A: Design plates is not a standard term used in PowerPoint for presentation designs.
Option C: Placeholders are containers on a slide for content such as text, images, and media.
Option D: Blueprints typically refer to detailed plans or designs but are not specifically used in the context of PowerPoint templates.
Therefore, the correct answer in this context is Option B: Templates.