Your ASP.NET application displays sales data on a page. You
want to improve performance by holding the page in memory on
the server for one hour. You want to ensure that the page is
flushed from memory after one hour, and that the page is
re-created when the next request for the page is received. 
What should you do? 
A . Initialize a new instance of the Cache class in the
Application.Start event handler. 
B . Initialize a new instance of the Timer class in the
Page.Load event handler. 
C . Set the Duration attribute of the OutputCache directive
in the page. 
D . In the Web.config file, set the timeout attribute of the
sessionState element.