A component that inserts a second Visualforce page into the current page. The entire page
subtree is injected into the Visualforce DOM at the point of reference and the scope of the
included page is maintained.
If content should be stripped from the included page, use the <apex:composition> component
instead.
A.
apex:iframe
B.
apex:include
C.
apex:inputFile
D.
apex:inputField