Which of the following would not be considered a constituent of a row group element?

?Identify an attribute of the meta element provides the value associated with the http-equiv or name attributes.

A. ?charset="encoding"opening B. ?content="text" C. ?name="text" D. http-equiv="content-type|default-style|refresh"

A rule the author offers is:

a. Don’t use fancy fonts. b. If you can’t make something self-evident, you at least need to make it self-explanatory. c. Don’t worry about usability if your site or app is the only choice available.