Which property is used to change the background color of an element in CSS?

The property used to change the background color of an element in CSS is known as background-color. This property allows developers to specify a distinct color that will fill the background of an HTML element, enhancing the visual appeal and readability of the content.

When you set the background-color property, you can use color names, hex codes, RGB, or HSL values to define how the element's background should appear. For instance, you could use background-color: blue; to set the background to blue or background-color: #ffcc00; for a specific shade.

The other options do not represent standard CSS properties for setting background colors. Most CSS properties are well-defined, and understanding their correct usage is crucial for effective web design.