Which is linux operating system? 1. Private OS
2. Open source OS
3. Windows operating System
4. None of these above​

1. how do you view the edited document without the track changes markup? a. select accept all changes in document in the accept drop-down menu.b. click on restrict editing in the protect group.c. click on the reviewing pane drop-down menu in the tracking group.d. click on final in the display for review drop-down menu.