In MS PowerPoint, the effect that plays while moving from one slide to the next is applied from which tab?

The correct answer is B, Transitions. A transition is the visual effect between two slides — Fade, Push, Wipe, Split or Morph — and its gallery, duration, sound and advance timing all sit on the Transitions tab. Option C, Animations, is the near neighbour that papers use as a distractor: it applies effects to objects inside one slide, such as making a bullet fly in or a chart grow. Option A, Design, carries themes, variants, colours, fonts and the slide size, which change the look of slides but not the movement between them. Option D, Insert, is for adding content — tables, pictures, shapes, charts, headers, footers and slide numbers. Fix the rule in one line: between slides is a transition, within a slide is an animation. One more pointer worth carrying: the Transitions tab also holds the Apply To All button, which copies the chosen effect to every slide of the deck in one click.