How do you create an Animation clip in Unity?

To create an Animation clip in Unity, utilizing the Animation window to add keyframes is the correct method. The Animation window is a powerful tool that enables artists and developers to define the animation of GameObjects by managing keyframes directly in a timeline format.

In this window, users can visualize their animatable properties and set keyframes at specific intervals. This process involves selecting the GameObject you want to animate, opening the Animation window, and then creating a new Animation clip. As you move through the timeline, you can adjust the properties of the GameObject—such as position, rotation, and scale—and record these adjustments as keyframes.

This workflow allows for detailed control over the animation process, making it easier to fine-tune movements and transitions between different states. It's a straightforward and intuitive approach, which is why it stands out as the correct answer for creating new Animation clips in Unity.