Exercise 6. (OSC 3.13) (10%) Using the progran below, identify the values of pid at lines A, B,C, and D. (Assume that the actual pids of the parent and child are 2600 and 2603, respectively.) include include include int main) pidt pid, pid1; /*fork a child procenn/ pid fork; if (pido) / error occurred fprintf (tderr, "Fork Failed") return 1; else if (pid a-0) { /* child procena */ pid getpido printf ( "child: pid-%d",pid); /**/ printf ("child: pidpidi); / B else / parent procoss pid getpido printf ("parent: printf ("parent: wait NULL) pid " %d",pid); /* C */ pidI-%d",pid!); /* D */ return o