QUESTION 4 What are the possible outputs printed from this program shown below? You must consider all possible scenarios of the system calls succeeding as well as failing. In your answer, clearly list down all the possible scenarios, and the output of the program in each of these scenarios. int pid = fork () if(pid ==0) { printf("First \ "'); exec(some_program); printf("Second ");} else if(pid >0) { wait( ); printf("Third \ n") );} else {printf(" Forth \ "") ); Case 1: (fork and exec succeed Case 2: (fork succeeds but exec fails) Case 3: (fork fails)