The term ____ refers to the process of verifying that your HTML5 (or XHTML) document is well formed, and checking that the elements in your document are correctly written according to the element definitions in a specific DTD.
a. validation
b. parsing
c. interpreting
d. recognizing
CSS styles consist of rule sets applied to HTML elements by their selectors (e.g., body, h1, p, .myclass, #myid, etc.). However, a single rule consists of a property and its value, separated by a ____.