Please help with my operating systems homework for CS. Will give thumbs up

If a process has three sequential fork() statements, how many processes are created by the end of the last fork() statement? 2 3 4 8 Question 2 1 pts If a process has executed a read_file(...) statement, to what state will it switch to immediately? Ready Running Waiting Terminated Question 3 1 pts In a system, if 1 process is executing, 3 are in ready queue. 10 processes are in different I/O queues, 2 have just been created (in "New" state), and 3 in "terminated" state, the current degree of multiprogramming is: 19 1 14 16