<feedback>
The <feedback> tag provides targeted response text in interactive exercises.
It is commonly used in true/false, multiple-choice, and similar problems to
explain why an answer is correct or incorrect.
Unlike a general <hint> or <solution>,
<feedback> reacts to a particular answer or response.
Syntax
Attributes
This tag has no attributes.Children
The following may appear as children:<custom> <dataurl> <fillin> <m> <pf> <prefigure> <pubtitle> <quantity> <var> <xref> TextParents
This element may appear as an immediate child of the following elements:<checkpoint>