Answer:
D. must know HTML and XML
Step-by-step explanation:
HTML means hypertext markup language is a standard markup language for documents designed to be displayed in a web browser and also for categorizing text files to get a font, color, graphic, and hyperlink effects on a web page. XML means Extensible Markup Language is a software language used to structure and define guidelines for converting files from one form to another. The statement about the education and training needed by a Web designer is that a web designer must Know HTML and XML. As a web designer, you have to know HTML and XML because both are the principal software that is needed to set up a website.