Which of the following is true about the strategy that uses page fault frequency (PFF) to prevent thrashing? A. A new process may be swapped in if PFF is too low.
B. A new page is allocated to a process if PFF is too high.
C. A page is deallocated from a process if the PFF is too low.
D. All of the above.

The answer is "option B"

Explanation:

Thrashing arises whenever the virtual machine assets of a device are overused, leading to constant paging and page defect, that affects the processing of most programs.  

In the given-question, only choice b is correct because this mechanism can be allocated to avoid the thumping of new pages if PFF is too high by increasing several frames or by removing expulsion frames.

answer is:

a). backstage view

explanation:

backstage view is the area where files and data about them is managed— creating, saving, printing, sending to others, inspecting for hidden metadata or personal information, and setting options. so in this way we can add many things to our document swiftly.

i hope you get the idea.