You have a Microsoft Windows SharePoint Services site.

You need to write the custom code that runs each time a new functionality is added to the site.

Which class and method should you implement?

A.
SPListEventReceiver.FieldAdded

B.
SPWebEventReceiver.WebMoved

C.
SPItemEventReceiver.ItemAdded

D.
SPFeatureReceiver.FeatureInstalled

E.
SPFeatureReceiver.FeatureActivated