What should you do?

You are designing an HTML5 website.

You need to design the interface such that the content is viewable in all types of browsers, including screen readers.

What should you do? (Each correct answer presents a complete solution. Choose all that apply.)
A . Ensure that content elements have valid and descriptive names.
B . Use Resource Description Framework (RDF) to describe content elements.
C . Convert HTML forms to XForms.
D . Use HTML5 semantic markup elements.
E . Annotate content elements with Accessible Rich Internet Application (ARIA) attributes.

Answer: D,E