HTML and CSS Certification Practice Test

The selection of all `<p>` elements with the class 'note' in CSS is accurately done using the syntax `p.note { }`. This method combines the element type (`p`) with the class selector (`.note`) in a straightforward way. The period before the class name is the standard CSS notation for class selectors, indicating that the style rules enclosed within the curly braces should apply specifically to `<p>` elements that have the class 'note'.

This method is concise and directly communicates that the styles are intended only for `<p>` elements that carry the specified class, making it an efficient way to apply specific styling to a group of related items in the HTML document.

The other answers provided do not correctly use CSS syntax for selecting elements by class. For instance, using "p.class(note)" would imply a different syntactical structure not recognized in CSS, and "p .note" would select `<note>` elements that are nested inside `<p>` tags rather than selecting `<p>` elements with a class of 'note'. "select p.note" utilizes a keyword that does not belong to standard CSS syntax.