The answer is a. Title Bar
The Title Bar displays the name of the program and the name of the current open file, whether it is just displayed or being edited. It is located at the top of the program window.
Answer:
Firewalls
Explanation:
A firewall is simply a network security system whose main duty is. to prevent unwanted access to. private network.
Firewalls is measures to protect your computer against threats from human actions.
It is also the one singular thing that prevents you from accessing the file on your friends system.
Your anwser will be the last one
