A. Attribute values cannot include line feeds or white spaces. W Courier Newlr Z

B. Use attributes when including specific, clear numerical value information in an XML document.

C. An XML document must never be structured without any element content, and with only empty elements and attributes.

D. Under XML 1. 0 recommendations, there are no clear rules as to whether to use a child element or an attribute when attaching information to an element.