Your project, which uses prototype.js, contains the JavaScript class Photoviewer (see EXAMPLE, below). Which one of the

[answerhappygod]

Your project, which uses prototype.js, contains the JavaScript class Photoviewer (see EXAMPLE, below). Which one of the following code samples will create a class called AdvancedPhotoViewer that extends Photoviewe r?
EXAMPLE:
var PhotoViewer = Class.create();

A. var AdvancedPhotoViewer = new PhotoViewer()
B. AdvancedPhotoViewer.prototype = Object.extend (new PhotoViewer ()
C. var AdvancedPhotoViewer = Class.extend (PhotoViewer)
D. AdvancedPhotoViewer = PhotoViewer.extend ()