Your network contains an FTP server named Server1. Server1 has an FTP site named FTP1. You need
to hide all of the files in FTP1 that have an .exe file extension. The solution must ensure that users
can list other files in FTP1. What should you modify?

A.
the FTP authorization rules

B.
the FTP directory browsing

C.
the FTP request filtering

D.
the NTFS permissions