Write a C program that mimics the $cp$ command using open$()$ system call to open source.txt file in read$-$only mode and copy the contents of it to destination.txt using read$()$ and write$()$ system calls. While reading and writing follow the below procedure:

a$.$ Read the next $100$ characters from source.txt$,$ and among characters read, replace each character $\text{'}1\text{'}$ with character $\text{'}A\text{'}$ and all characters are then written in destination.txt

b$.$ Write characters $"$XYZ$"$ into file destination.txt

c$.$ Repeat the previous steps until the end of file source.txt$.$ The last read step may not have $100$ characters.

Program execution: $./$yourProgram source.txt destination.txt

Please only use system call functions for file manipulation and create a folder for this problem