Using the program shown below, explain what will be output at Line A. Assume that fork() completes successfully.  #include #include #include   int value = 40; int main() {      pid_t pid;      pid = fork();      if (pid == 0) {             value += 30;      } else if (pid > 0) {             wait(NULL);             printf(“PARENT: value = %d”, value);   //Line A             exit(0);      } }

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