What's the easy way to apply varied animations to test on slides

Answer: Option B

To apply varied animations to text on slides in PowerPoint, the easy way is to use Option B: apply an animation scheme. Animation schemes in PowerPoint allow you to apply predefined animations to all or selected elements on your slides, providing a quick and consistent way to add animations.
Option A: apply effects in the custom animation text pane refers to manually applying animations and effects to individual elements using the custom animation pane, which is more detailed and specific than applying animation schemes.
Option C: customize bullets with animated clipart is not directly related to applying varied animations to text on slides; it focuses on customizing bullet points with animated clipart, which is a different feature.
Option D: all of above is incorrect because Options A and C do not accurately describe applying varied animations to text using animation schemes.
Therefore, the correct answer in this context is Option B: apply an animation scheme.