Which 1 is right

A group of user installed a Visual Basic .Net application, you have released a the next version of the application, which is intended only to the user os the previous versions. However, the latest version includes a number of new features than the previous version. Therefore,you cannot upgrade the earlier version and the application must be reinstalled. In this case, what is the best way to reduse the size of ur Visual Basic .Net application?

A.Exclude the project output from the application.
B.Exclude .Net runtime files.
C.Exclude Visual Basic .Net runtime files.
D.Exclude the files of the application that existed in the earlier version

plz explain it also for the reason.

Regards,

tech_question