Which CSS property is commonly used to change the text color of an element?

The property commonly used to change the text color of an element in CSS is the color property. This property directly affects the color of the text within the selected element, allowing developers to customize the appearance of the text displayed on a webpage. For example, using color: red; will change the text to red.

Other properties listed do not serve this purpose. The background-color property changes the background color of an element rather than the text itself. The text-color property is not a valid CSS property; instead, color is the correct term. Lastly, font-color is also not a recognized property in CSS. Therefore, the color property is essential for controlling text color, making it the right choice in this context.