7.Consider the code below that uses the fork system call:

8.#include

int main()

{printf("%d ",getpid());

fork(); // fork A

printf("%d ",getpid());

fork(); // fork B

printf("%d ",getpid());

fork(); // fork C

printf("%d ",getpid());

return 0;}

Answer the questions below.

a.How many processes are created in total by this program (not including the original process).

b.Identify the parent/child relationships between the processes.