Which aspect of time-based animation differentiates it from frame-based animation?

The correct choice highlights that time-based animation focuses on adjustments made to properties that mimic natural movement. This approach is centered around the idea of timing and fluid transitions, allowing animators to create more realistic motions by varying speed, acceleration, and deceleration according to the physics of the animated objects or characters.

In time-based animation, instead of relying solely on individual frames to depict motion, animators adjust properties over time, allowing for smoother and more lifelike animations. This technique enables the animation to respond dynamically to the timing of different movements, providing a more engaging viewer experience.

Other options, while relevant to aspects of animation, do not accurately capture the distinguishing features of time-based animation. The use of AI to generate movements is a modern enhancement but doesn't define the fundamental differences between time-based and frame-based techniques. Similarly, relying on a storyboard is common in both forms of animation and does not differentiate them. Lastly, emphasizing static images relates more to static visuals rather than defining the principles of motion in animation.