Clients sometimes go through this device to communicate with secure systems.

The proper rule ____________________ ensures that the most resource-intensive actions are performed after the most restrictive ones, thereby reducing the number of packets that undergo intense scrutiny.

Fill in the blank(s) with the appropriate word(s).

A _____ should be used to specify a movie clip on a webpage.?

A. ?mediaelement B. ?movieelement C. ?videoelement  D. ?pictureelement