How many processes does the following piece of code create? Why? int main() fork(); fork(); fork(); return 0; 2. (20 points) a) Write a C/C++-program that creates a chain of 10 processes and prints out their process ids and relationships. For example, process 1 is the parent of process 2, process 2 is the parent of process 3, process 3 is the parent of 4 and so on. Each child has to print out all her ancestors identified by the process ids. b) Write a C/C++-program that creates a fan of 10 processes. That is, process 1 is the parent of processes 2, 3, 4, 5, 6 and so on.