DRAG DROP
There is an ASP.NET Web site PassGuideWS.
There is an ASP.NET Web application PassGuideApp.
There is an ASP.NET AJAX page PassGuidePage.
PassGuidePage has two UpdatePanel controls PassGuide1 and PassGuide2.
PassGuide1 includes, in the content template of PassGuide1, another UpdatePanel control
PassGuide11.
The refreshing the contents of PassGuide1 and PassGuide2 should only occur when the
control they contain cause a postback.
The content of PassGuide11 should be refreshed if any of these three controls cause a
postback.
What action should you take?
Answer: 
Explanation:
