What property is used in CSS to change the text color?

The property used in CSS to change the text color is "color." This property directly affects the color of the text within an element. When you assign a value to the "color" property, such as a named color (like "red"), a hexadecimal value (like "#FF5733"), or an RGB value (like "rgb(255, 0, 0)"), it will render the text in the specified color.

The other options, like "background-color," change the background color of an element instead of the text color, while "text-color" and "font-color" are not valid CSS properties for altering text color. They do not exist in CSS, which makes "color" the correct and functional choice for achieving this effect.