Which of the Following Functions Is Guaranteed to Be Executed

Multiple Choice

Which of the following functions is guaranteed to be executed after the DOM is ready? (Assume that the page only includes the prototype.js library.)

A) $(function() { . . . })
B) $(documerit) .ready(function() { . . . })
C) $("dom:loaded", function() . . . })
D) document.observe( "dom:loaded", function() . . . })
E) document.observe("html:loaded", function() . . . })
F) document.event("html:load", function() . . . })