Which of the following property is used to define the animations that should be run?

The correct answer is: D. animation-name

The animation-name property is used to define the animations that should be run. It takes a string value that is the name of an animation defined in the CSS stylesheet.

The animation-delay property is used to specify a delay before the animation starts. It takes a time value in seconds.

The animation-iteration-count property is used to specify how many times the animation should be repeated. It takes an integer value.

The animation-duration property is used to specify the duration of the animation. It takes a time value in seconds.

Here is an example of how to use the animation-name property:

```css .my-element { animation-name: my-animation; }

@keyframes my-animation { 0% { transform: translate(0, 0); } 100% { transform: translate(100px, 0); } } ```

In this example, the animation-name property is used to define an animation named my-animation. The @keyframes rule defines the animation, which will move the element from its original position to a position 100px to the right.