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8. Processes: Answer the following questions a) (5 points) Explain the use of fork() system call. b) (5 points) Assuming fork 0 is successful, how many times will the message "Super Bowll" be displayed? maino I int a=0 : int pid = fork 0 : a+t; if (pid =0 ) ( pid = fork ( ): at+; I else | at+ I printf("Super Bowl!(n"); printf("a is \%cdn", a); 1