Given that main memory is composed of four page frames, use the following table to answer all parts of this problem:

A$.(3$ points$)$ The contents of which page frame would be swapped out by FIFO $($First In First Out$)?$

B$.(3$ points$)$ The contents of which page frame would be swapped out by LRU $($Least Recently Used$)?$

C$.(3$ points$)$ The contents of which page frame would be swapped out by MRU $($Most Recently Used$)?$

D$.(3$ points$)$ The contents of which page frame would be swapped out by LFU $($Least Frequently Used$)?$