What does the following CSS rule do? p{ color: rgb(0,0,255); background-color: rgb(0,0,0); }

The correct interpretation of the CSS rule is that it sets the paragraph text color to blue and the background color to black. The color property defines the color of the text, and the background-color property specifies the background color of the element. In this rule, rgb(0,0,255) corresponds to blue, which means that any text within the <p> tags will be displayed in blue. Meanwhile, rgb(0,0,0) represents the color black, indicating that the paragraph's background will be black.

This rule effectively enhances the visibility of the text by providing a strong contrast between the blue text and black background. Understanding this distinction helps in using CSS to create visually appealing styles for web content.